{"id":15640,"date":"2023-03-20T14:07:45","date_gmt":"2023-03-20T08:37:45","guid":{"rendered":"https:\/\/icsesolutions.com\/?p=15640"},"modified":"2023-03-21T10:16:05","modified_gmt":"2023-03-21T04:46:05","slug":"selina-icse-solutions-class-9-maths-area-perimeter-plane-figures","status":"publish","type":"post","link":"https:\/\/icsesolutions.com\/selina-icse-solutions-class-9-maths-area-perimeter-plane-figures\/","title":{"rendered":"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures"},"content":{"rendered":"<h2><span style=\"color: #00ccff;\">Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures<\/span><\/h2>\n<p><a class=\"button-red\" title=\"ICSE Solutions for Class 10, 9, 8, 7 and 6\" href=\"https:\/\/icsesolutions.com\/icse-solutions\/\">ICSE Solutions<\/a><a class=\"button-blue\" title=\"Selina Concise ICSE Solutions for Class 10, 9, 8, 7 and 6\" href=\"https:\/\/icsesolutions.com\/selina-concise-icse-solutions\/\">Selina ICSE Solutions<\/a><\/p>\n<p>APlusTopper.com provides step by step solutions for Selina Concise Mathematics Class 9 ICSE Solutions Chapter 20 Area and Perimeter of Plane Figures. You can download the Selina Concise Mathematics ICSE Solutions for Class 9 with Free PDF download option. Selina Publishers Concise Mathematics for Class 9 ICSE Solutions all questions are solved and explained by expert mathematic teachers as per ICSE board guidelines.<\/p>\n<p><a class=\"button-red\" title=\"Formulae Handbook For ICSE Class 9 and 10 Maths and Science\" href=\"https:\/\/goo.gl\/FCvuh4\">Download Formulae Handbook For ICSE Class 9 and 10<\/a><\/p>\n<p><strong>Selina ICSE Solutions for Class 9 Maths Chapter 20 Area and Perimeter of Plane Figures<\/strong><\/p>\n<p><span style=\"color: #0000ff;\"><strong>Exercise 20(A)<\/strong><\/span><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 1:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124731\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-1.png?resize=430%2C668&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 1\" width=\"430\" height=\"668\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-1.png?w=430&amp;ssl=1 430w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-1.png?resize=193%2C300&amp;ssl=1 193w\" sizes=\"(max-width: 430px) 100vw, 430px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 2:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124732\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-2.png?resize=338%2C588&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 2\" width=\"338\" height=\"588\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-2.png?w=338&amp;ssl=1 338w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-2.png?resize=172%2C300&amp;ssl=1 172w\" sizes=\"(max-width: 338px) 100vw, 338px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 3:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124733\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-3.png?resize=292%2C464&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 3\" width=\"292\" height=\"464\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-3.png?w=292&amp;ssl=1 292w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-3.png?resize=189%2C300&amp;ssl=1 189w\" sizes=\"(max-width: 292px) 100vw, 292px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 4:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124734\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-4.png?resize=256%2C385&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 4\" width=\"256\" height=\"385\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-4.png?w=256&amp;ssl=1 256w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-4.png?resize=199%2C300&amp;ssl=1 199w\" sizes=\"(max-width: 256px) 100vw, 256px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 5:<\/strong><\/span><br \/>\nSince the perimeter of the isosceles triangle is 36cm and base is 16cm.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124824\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/08\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-180.png?resize=367%2C56&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 180\" width=\"367\" height=\"56\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/08\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-180.png?w=367&amp;ssl=1 367w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2018\/08\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-180.png?resize=300%2C46&amp;ssl=1 300w\" sizes=\"(max-width: 367px) 100vw, 367px\" data-recalc-dims=\"1\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124735\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-5.png?resize=626%2C506&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 5\" width=\"626\" height=\"506\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-5.png?w=626&amp;ssl=1 626w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-5.png?resize=300%2C242&amp;ssl=1 300w\" sizes=\"(max-width: 626px) 100vw, 626px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 6:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124736\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-6.png?resize=588%2C573&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 6\" width=\"588\" height=\"573\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-6.png?w=588&amp;ssl=1 588w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-6.png?resize=300%2C292&amp;ssl=1 300w\" sizes=\"(max-width: 588px) 100vw, 588px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 7:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124737\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-7.png?resize=241%2C699&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 7\" width=\"241\" height=\"699\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-7.png?w=241&amp;ssl=1 241w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-7.png?resize=103%2C300&amp;ssl=1 103w\" sizes=\"(max-width: 241px) 100vw, 241px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 8:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124738\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-8.png?resize=455%2C718&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 8\" width=\"455\" height=\"718\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-8.png?w=455&amp;ssl=1 455w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-8.png?resize=190%2C300&amp;ssl=1 190w\" sizes=\"(max-width: 455px) 100vw, 455px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 9:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124739\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-9.png?resize=390%2C222&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 9\" width=\"390\" height=\"222\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-9.png?w=390&amp;ssl=1 390w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-9.png?resize=300%2C171&amp;ssl=1 300w\" sizes=\"(max-width: 390px) 100vw, 390px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 10:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124740\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-10.png?resize=368%2C763&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 10\" width=\"368\" height=\"763\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-10.png?w=368&amp;ssl=1 368w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-10.png?resize=145%2C300&amp;ssl=1 145w\" sizes=\"(max-width: 368px) 100vw, 368px\" data-recalc-dims=\"1\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124741\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-11.png?resize=325%2C771&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 11\" width=\"325\" height=\"771\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-11.png?w=325&amp;ssl=1 325w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-11.png?resize=126%2C300&amp;ssl=1 126w\" sizes=\"(max-width: 325px) 100vw, 325px\" data-recalc-dims=\"1\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124742\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-12.png?resize=338%2C429&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 12\" width=\"338\" height=\"429\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-12.png?w=338&amp;ssl=1 338w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-12.png?resize=236%2C300&amp;ssl=1 236w\" sizes=\"(max-width: 338px) 100vw, 338px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 11:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124743\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-13.png?resize=291%2C547&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 13\" width=\"291\" height=\"547\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-13.png?w=291&amp;ssl=1 291w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-13.png?resize=160%2C300&amp;ssl=1 160w\" sizes=\"(max-width: 291px) 100vw, 291px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 12:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124744\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-14.png?resize=331%2C358&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 14\" width=\"331\" height=\"358\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-14.png?w=331&amp;ssl=1 331w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-14.png?resize=277%2C300&amp;ssl=1 277w\" sizes=\"(max-width: 331px) 100vw, 331px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 13:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124745\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-15.png?resize=287%2C328&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 15\" width=\"287\" height=\"328\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-15.png?w=287&amp;ssl=1 287w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-15.png?resize=263%2C300&amp;ssl=1 263w\" sizes=\"(max-width: 287px) 100vw, 287px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 14:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124746\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-16.png?resize=366%2C331&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 16\" width=\"366\" height=\"331\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-16.png?w=366&amp;ssl=1 366w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-16.png?resize=300%2C271&amp;ssl=1 300w\" sizes=\"(max-width: 366px) 100vw, 366px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 15:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124747\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-17.png?resize=331%2C642&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 17\" width=\"331\" height=\"642\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-17.png?w=331&amp;ssl=1 331w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-17.png?resize=155%2C300&amp;ssl=1 155w\" sizes=\"(max-width: 331px) 100vw, 331px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #0000ff;\"><strong>Exercise 20(B)<\/strong><\/span><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 1:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124748\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-18.png?resize=386%2C208&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 18\" width=\"386\" height=\"208\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-18.png?w=386&amp;ssl=1 386w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-18.png?resize=300%2C162&amp;ssl=1 300w\" sizes=\"(max-width: 386px) 100vw, 386px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 2:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124749\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-19.png?resize=427%2C148&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 19\" width=\"427\" height=\"148\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-19.png?w=427&amp;ssl=1 427w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-19.png?resize=300%2C104&amp;ssl=1 300w\" sizes=\"(max-width: 427px) 100vw, 427px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 3:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124750\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-20.png?resize=306%2C686&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 20\" width=\"306\" height=\"686\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-20.png?w=306&amp;ssl=1 306w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-20.png?resize=134%2C300&amp;ssl=1 134w\" sizes=\"(max-width: 306px) 100vw, 306px\" data-recalc-dims=\"1\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124751\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-21.png?resize=381%2C386&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 21\" width=\"381\" height=\"386\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-21.png?w=381&amp;ssl=1 381w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-21.png?resize=296%2C300&amp;ssl=1 296w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-21.png?resize=100%2C100&amp;ssl=1 100w\" sizes=\"(max-width: 381px) 100vw, 381px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 4:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124752\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-22.png?resize=457%2C695&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 22\" width=\"457\" height=\"695\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-22.png?w=457&amp;ssl=1 457w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-22.png?resize=197%2C300&amp;ssl=1 197w\" sizes=\"(max-width: 457px) 100vw, 457px\" data-recalc-dims=\"1\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124753\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-23.png?resize=281%2C461&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 23\" width=\"281\" height=\"461\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-23.png?w=281&amp;ssl=1 281w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-23.png?resize=183%2C300&amp;ssl=1 183w\" sizes=\"(max-width: 281px) 100vw, 281px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 5:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124754\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-24.png?resize=295%2C377&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 24\" width=\"295\" height=\"377\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-24.png?w=295&amp;ssl=1 295w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-24.png?resize=235%2C300&amp;ssl=1 235w\" sizes=\"(max-width: 295px) 100vw, 295px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 6:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124755\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-25.png?resize=276%2C162&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 25\" width=\"276\" height=\"162\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 7:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124756\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-26.png?resize=254%2C345&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 26\" width=\"254\" height=\"345\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-26.png?w=254&amp;ssl=1 254w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-26.png?resize=221%2C300&amp;ssl=1 221w\" sizes=\"(max-width: 254px) 100vw, 254px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 8:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124757\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-27.png?resize=451%2C648&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 27\" width=\"451\" height=\"648\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-27.png?w=451&amp;ssl=1 451w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-27.png?resize=209%2C300&amp;ssl=1 209w\" sizes=\"(max-width: 451px) 100vw, 451px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 9:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124758\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-28.png?resize=554%2C357&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 28\" width=\"554\" height=\"357\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-28.png?w=554&amp;ssl=1 554w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-28.png?resize=300%2C193&amp;ssl=1 300w\" sizes=\"(max-width: 554px) 100vw, 554px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 10:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124759\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-29.png?resize=244%2C496&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 29\" width=\"244\" height=\"496\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-29.png?w=244&amp;ssl=1 244w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-29.png?resize=148%2C300&amp;ssl=1 148w\" sizes=\"(max-width: 244px) 100vw, 244px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 11:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124760\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-30.png?resize=211%2C494&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 30\" width=\"211\" height=\"494\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-30.png?w=211&amp;ssl=1 211w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-30.png?resize=128%2C300&amp;ssl=1 128w\" sizes=\"(max-width: 211px) 100vw, 211px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 12:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124761\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-31.png?resize=289%2C433&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 31\" width=\"289\" height=\"433\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-31.png?w=289&amp;ssl=1 289w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-31.png?resize=200%2C300&amp;ssl=1 200w\" sizes=\"(max-width: 289px) 100vw, 289px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 13:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124762\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-32.png?resize=295%2C185&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 32\" width=\"295\" height=\"185\" data-recalc-dims=\"1\" \/><br \/>\nWe need to find the cost of carpeting of 80 cm = 0.8 m wide carpet, if the rate of carpeting is Rs. 25. Per metre.<br \/>\nThen<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124763\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-33.png?resize=240%2C72&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 33\" width=\"240\" height=\"72\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 14:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124764\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-34.png?resize=296%2C440&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 34\" width=\"296\" height=\"440\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-34.png?w=296&amp;ssl=1 296w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-34.png?resize=202%2C300&amp;ssl=1 202w\" sizes=\"(max-width: 296px) 100vw, 296px\" data-recalc-dims=\"1\" \/><br \/>\n<span style=\"color: #eb4924;\"><strong>Solution 15:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124765\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-35.png?resize=358%2C526&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 35\" width=\"358\" height=\"526\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-35.png?w=358&amp;ssl=1 358w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-35.png?resize=204%2C300&amp;ssl=1 204w\" sizes=\"(max-width: 358px) 100vw, 358px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 16:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124766\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-36.png?resize=306%2C465&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 36\" width=\"306\" height=\"465\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-36.png?w=306&amp;ssl=1 306w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-36.png?resize=197%2C300&amp;ssl=1 197w\" sizes=\"(max-width: 306px) 100vw, 306px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 17:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124767\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-37.png?resize=344%2C212&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 37\" width=\"344\" height=\"212\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-37.png?w=344&amp;ssl=1 344w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-37.png?resize=300%2C185&amp;ssl=1 300w\" sizes=\"(max-width: 344px) 100vw, 344px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 18:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124768\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-38.png?resize=633%2C673&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 38\" width=\"633\" height=\"673\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-38.png?w=633&amp;ssl=1 633w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-38.png?resize=282%2C300&amp;ssl=1 282w\" sizes=\"(max-width: 633px) 100vw, 633px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 19:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124769\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-39.png?resize=377%2C768&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 39\" width=\"377\" height=\"768\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-39.png?w=377&amp;ssl=1 377w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-39.png?resize=147%2C300&amp;ssl=1 147w\" sizes=\"(max-width: 377px) 100vw, 377px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 20:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124770\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-40.png?resize=305%2C761&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 40\" width=\"305\" height=\"761\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-40.png?w=305&amp;ssl=1 305w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-40.png?resize=120%2C300&amp;ssl=1 120w\" sizes=\"(max-width: 305px) 100vw, 305px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 21:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124771\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-41.png?resize=297%2C291&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 41\" width=\"297\" height=\"291\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 22:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124772\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-42.png?resize=360%2C557&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 42\" width=\"360\" height=\"557\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-42.png?w=360&amp;ssl=1 360w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-42.png?resize=194%2C300&amp;ssl=1 194w\" sizes=\"(max-width: 360px) 100vw, 360px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 23:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124773\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-43.png?resize=510%2C313&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 43\" width=\"510\" height=\"313\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-43.png?w=510&amp;ssl=1 510w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-43.png?resize=300%2C184&amp;ssl=1 300w\" sizes=\"(max-width: 510px) 100vw, 510px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 24:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124774\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-44.png?resize=446%2C559&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 44\" width=\"446\" height=\"559\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-44.png?w=446&amp;ssl=1 446w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-44.png?resize=239%2C300&amp;ssl=1 239w\" sizes=\"(max-width: 446px) 100vw, 446px\" data-recalc-dims=\"1\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124776\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-46.png?resize=390%2C328&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 46\" width=\"390\" height=\"328\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-46.png?w=390&amp;ssl=1 390w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-46.png?resize=300%2C252&amp;ssl=1 300w\" sizes=\"(max-width: 390px) 100vw, 390px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 25:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124777\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-47.png?resize=336%2C370&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 47\" width=\"336\" height=\"370\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-47.png?w=336&amp;ssl=1 336w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-47.png?resize=272%2C300&amp;ssl=1 272w\" sizes=\"(max-width: 336px) 100vw, 336px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 26:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124778\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-48.png?resize=395%2C777&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 48\" width=\"395\" height=\"777\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-48.png?w=395&amp;ssl=1 395w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-48.png?resize=153%2C300&amp;ssl=1 153w\" sizes=\"(max-width: 395px) 100vw, 395px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 27:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124779\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-49.png?resize=323%2C689&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 49\" width=\"323\" height=\"689\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-49.png?w=323&amp;ssl=1 323w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-49.png?resize=141%2C300&amp;ssl=1 141w\" sizes=\"(max-width: 323px) 100vw, 323px\" data-recalc-dims=\"1\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124780\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-50.png?resize=391%2C786&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 50\" width=\"391\" height=\"786\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-50.png?w=391&amp;ssl=1 391w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-50.png?resize=149%2C300&amp;ssl=1 149w\" sizes=\"(max-width: 391px) 100vw, 391px\" data-recalc-dims=\"1\" \/><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124781\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-51.png?resize=299%2C246&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 51\" width=\"299\" height=\"246\" data-recalc-dims=\"1\" \/><br \/>\nIn the given figure, we can observe that the non-parallel sides are equal and hence it is an isosceles trapezium.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124782\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-52.png?resize=501%2C716&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 52\" width=\"501\" height=\"716\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-52.png?w=501&amp;ssl=1 501w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-52.png?resize=210%2C300&amp;ssl=1 210w\" sizes=\"(max-width: 501px) 100vw, 501px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 28:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124783\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-53.png?resize=330%2C376&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 53\" width=\"330\" height=\"376\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-53.png?w=330&amp;ssl=1 330w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-53.png?resize=263%2C300&amp;ssl=1 263w\" sizes=\"(max-width: 330px) 100vw, 330px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 29:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124784\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-54.png?resize=298%2C446&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 54\" width=\"298\" height=\"446\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-54.png?w=298&amp;ssl=1 298w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-54.png?resize=200%2C300&amp;ssl=1 200w\" sizes=\"(max-width: 298px) 100vw, 298px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 30:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124785\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-55.png?resize=310%2C263&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 55\" width=\"310\" height=\"263\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-55.png?w=310&amp;ssl=1 310w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-55.png?resize=300%2C255&amp;ssl=1 300w\" sizes=\"(max-width: 310px) 100vw, 310px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 31:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124786\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-56.png?resize=291%2C538&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 56\" width=\"291\" height=\"538\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-56.png?w=291&amp;ssl=1 291w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-56.png?resize=162%2C300&amp;ssl=1 162w\" sizes=\"(max-width: 291px) 100vw, 291px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 32:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124787\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-57.png?resize=329%2C173&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 57\" width=\"329\" height=\"173\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-57.png?w=329&amp;ssl=1 329w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-57.png?resize=300%2C158&amp;ssl=1 300w\" sizes=\"(max-width: 329px) 100vw, 329px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 33:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124788\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-58.png?resize=339%2C785&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 58\" width=\"339\" height=\"785\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-58.png?w=339&amp;ssl=1 339w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-58.png?resize=130%2C300&amp;ssl=1 130w\" sizes=\"(max-width: 339px) 100vw, 339px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 34:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124789\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-59.png?resize=485%2C331&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 59\" width=\"485\" height=\"331\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-59.png?w=485&amp;ssl=1 485w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-59.png?resize=300%2C205&amp;ssl=1 300w\" sizes=\"(max-width: 485px) 100vw, 485px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 35:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124790\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-60.png?resize=344%2C386&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 60\" width=\"344\" height=\"386\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-60.png?w=344&amp;ssl=1 344w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-60.png?resize=267%2C300&amp;ssl=1 267w\" sizes=\"(max-width: 344px) 100vw, 344px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 36:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124791\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-61.png?resize=390%2C359&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 61\" width=\"390\" height=\"359\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-61.png?w=390&amp;ssl=1 390w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-61.png?resize=300%2C276&amp;ssl=1 300w\" sizes=\"(max-width: 390px) 100vw, 390px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #0000ff;\"><strong>Exercise 20(C)<\/strong><\/span><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 1:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124792\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-62.png?resize=214%2C332&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 62\" width=\"214\" height=\"332\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-62.png?w=214&amp;ssl=1 214w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-62.png?resize=193%2C300&amp;ssl=1 193w\" sizes=\"(max-width: 214px) 100vw, 214px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 2:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124793\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-63..png?resize=334%2C323&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 63.\" width=\"334\" height=\"323\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-63..png?w=334&amp;ssl=1 334w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-63..png?resize=300%2C290&amp;ssl=1 300w\" sizes=\"(max-width: 334px) 100vw, 334px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 3:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124794\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-64.png?resize=206%2C193&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 64\" width=\"206\" height=\"193\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 4:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124795\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-65.png?resize=264%2C389&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 65\" width=\"264\" height=\"389\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-65.png?w=264&amp;ssl=1 264w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-65.png?resize=204%2C300&amp;ssl=1 204w\" sizes=\"(max-width: 264px) 100vw, 264px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 5:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124796\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-66.png?resize=260%2C530&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 66\" width=\"260\" height=\"530\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-66.png?w=260&amp;ssl=1 260w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-66.png?resize=147%2C300&amp;ssl=1 147w\" sizes=\"(max-width: 260px) 100vw, 260px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 6:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124797\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-67.png?resize=302%2C244&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 67\" width=\"302\" height=\"244\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-67.png?w=302&amp;ssl=1 302w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-67.png?resize=300%2C242&amp;ssl=1 300w\" sizes=\"(max-width: 302px) 100vw, 302px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 7:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124798\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-68.png?resize=447%2C373&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 68\" width=\"447\" height=\"373\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-68.png?w=447&amp;ssl=1 447w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-68.png?resize=300%2C250&amp;ssl=1 300w\" sizes=\"(max-width: 447px) 100vw, 447px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 8:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124799\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-69.png?resize=552%2C395&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 69\" width=\"552\" height=\"395\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-69.png?w=552&amp;ssl=1 552w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-69.png?resize=300%2C215&amp;ssl=1 300w\" sizes=\"(max-width: 552px) 100vw, 552px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 9:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124800\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-70.png?resize=405%2C421&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 70\" width=\"405\" height=\"421\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-70.png?w=405&amp;ssl=1 405w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-70.png?resize=289%2C300&amp;ssl=1 289w\" sizes=\"(max-width: 405px) 100vw, 405px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 10:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124801\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-71.png?resize=379%2C477&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 71\" width=\"379\" height=\"477\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-71.png?w=379&amp;ssl=1 379w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-71.png?resize=238%2C300&amp;ssl=1 238w\" sizes=\"(max-width: 379px) 100vw, 379px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 11:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124802\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-72.png?resize=413%2C383&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 72\" width=\"413\" height=\"383\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-72.png?w=413&amp;ssl=1 413w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-72.png?resize=300%2C278&amp;ssl=1 300w\" sizes=\"(max-width: 413px) 100vw, 413px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 12:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124803\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-73.png?resize=247%2C103&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 73\" width=\"247\" height=\"103\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 13:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124804\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-74.png?resize=398%2C416&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 74\" width=\"398\" height=\"416\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-74.png?w=398&amp;ssl=1 398w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-74.png?resize=287%2C300&amp;ssl=1 287w\" sizes=\"(max-width: 398px) 100vw, 398px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 14:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124805\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-75.png?resize=599%2C376&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 75\" width=\"599\" height=\"376\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-75.png?w=599&amp;ssl=1 599w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-75.png?resize=300%2C188&amp;ssl=1 300w\" sizes=\"(max-width: 599px) 100vw, 599px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 15:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124806\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-76.png?resize=515%2C197&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 76\" width=\"515\" height=\"197\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-76.png?w=515&amp;ssl=1 515w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-76.png?resize=300%2C115&amp;ssl=1 300w\" sizes=\"(max-width: 515px) 100vw, 515px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 16:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124807\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-77.png?resize=618%2C269&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 77\" width=\"618\" height=\"269\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-77.png?w=618&amp;ssl=1 618w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-77.png?resize=300%2C131&amp;ssl=1 300w\" sizes=\"(max-width: 618px) 100vw, 618px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 17:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124808\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-78.png?resize=294%2C286&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 78\" width=\"294\" height=\"286\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 18:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124809\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-79.png?resize=314%2C166&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 79\" width=\"314\" height=\"166\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-79.png?w=314&amp;ssl=1 314w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-79.png?resize=300%2C159&amp;ssl=1 300w\" sizes=\"(max-width: 314px) 100vw, 314px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 19:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124810\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-80.png?resize=555%2C539&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 80\" width=\"555\" height=\"539\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-80.png?w=555&amp;ssl=1 555w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-80.png?resize=300%2C291&amp;ssl=1 300w\" sizes=\"(max-width: 555px) 100vw, 555px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 20:<\/strong><\/span><br \/>\nFrom the given data, we can calculate the area of the outer circle and then the area of inner circle and hence the width of the shaded portion.<br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124811\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-81.png?resize=610%2C431&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 81\" width=\"610\" height=\"431\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-81.png?w=610&amp;ssl=1 610w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-81.png?resize=300%2C212&amp;ssl=1 300w\" sizes=\"(max-width: 610px) 100vw, 610px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 21:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124812\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-82.png?resize=449%2C451&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 82\" width=\"449\" height=\"451\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-82.png?w=449&amp;ssl=1 449w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-82.png?resize=150%2C150&amp;ssl=1 150w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-82.png?resize=300%2C300&amp;ssl=1 300w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-82.png?resize=100%2C100&amp;ssl=1 100w\" sizes=\"(max-width: 449px) 100vw, 449px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 22:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124813\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-83.png?resize=397%2C359&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 83\" width=\"397\" height=\"359\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-83.png?w=397&amp;ssl=1 397w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-83.png?resize=300%2C271&amp;ssl=1 300w\" sizes=\"(max-width: 397px) 100vw, 397px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 23:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124814\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-84.png?resize=286%2C468&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 84\" width=\"286\" height=\"468\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-84.png?w=286&amp;ssl=1 286w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-84.png?resize=183%2C300&amp;ssl=1 183w\" sizes=\"(max-width: 286px) 100vw, 286px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 24:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124815\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-85.png?resize=502%2C215&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 85\" width=\"502\" height=\"215\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-85.png?w=502&amp;ssl=1 502w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-85.png?resize=300%2C128&amp;ssl=1 300w\" sizes=\"(max-width: 502px) 100vw, 502px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 25:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124816\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-86.png?resize=340%2C389&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 86\" width=\"340\" height=\"389\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-86.png?w=340&amp;ssl=1 340w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-86.png?resize=262%2C300&amp;ssl=1 262w\" sizes=\"(max-width: 340px) 100vw, 340px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 26:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124817\" src=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-87.png?resize=537%2C654&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 87\" width=\"537\" height=\"654\" srcset=\"https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-87.png?w=537&amp;ssl=1 537w, https:\/\/i2.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-87.png?resize=246%2C300&amp;ssl=1 246w\" sizes=\"(max-width: 537px) 100vw, 537px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 27:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124818\" src=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-88.png?resize=416%2C349&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 88\" width=\"416\" height=\"349\" srcset=\"https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-88.png?w=416&amp;ssl=1 416w, https:\/\/i0.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-88.png?resize=300%2C252&amp;ssl=1 300w\" sizes=\"(max-width: 416px) 100vw, 416px\" data-recalc-dims=\"1\" \/><\/p>\n<p><span style=\"color: #eb4924;\"><strong>Solution 28:<\/strong><\/span><br \/>\n<img loading=\"lazy\" class=\"alignnone size-full wp-image-124819\" src=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-89.png?resize=355%2C690&#038;ssl=1\" alt=\"Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures image - 89\" width=\"355\" height=\"690\" srcset=\"https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-89.png?w=355&amp;ssl=1 355w, https:\/\/i1.wp.com\/icsesolutions.com\/wp-content\/uploads\/2020\/12\/Selina-Concise-Mathematics-Class-9-ICSE-Solutions-Area-and-Perimeter-of-Plane-Figures-image-89.png?resize=154%2C300&amp;ssl=1 154w\" sizes=\"(max-width: 355px) 100vw, 355px\" data-recalc-dims=\"1\" \/><\/p>\n<p><strong>More Resources for Selina Concise Class 9 ICSE Solutions<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/icsesolutions.com\/selina-icse-solutions-class-9-maths\/\">Selina Publishers Mathematics for Class 9<\/a><\/li>\n<li><a href=\"https:\/\/icsesolutions.com\/selina-icse-solutions-class-9-physics\/\">Selina Class 9 ICSE Physics Solutions<\/a><\/li>\n<li><a href=\"https:\/\/icsesolutions.com\/selina-icse-solutions-class-9-chemistry\/\">Selina ICSE Class 9 Chemistry\u00a0Solutions<\/a><\/li>\n<li><a href=\"https:\/\/icsesolutions.com\/selina-icse-solutions-class-9-biology\/\">Selina Concise Biology Class 9 Solutions<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Selina Concise Mathematics Class 9 ICSE Solutions Area and Perimeter of Plane Figures ICSE SolutionsSelina ICSE Solutions APlusTopper.com provides step by step solutions for Selina Concise Mathematics Class 9 ICSE Solutions Chapter 20 Area and Perimeter of Plane Figures. You can download the Selina Concise Mathematics ICSE Solutions for Class 9 with Free PDF download &hellip;<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[3034],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/posts\/15640"}],"collection":[{"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/comments?post=15640"}],"version-history":[{"count":1,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/posts\/15640\/revisions"}],"predecessor-version":[{"id":158836,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/posts\/15640\/revisions\/158836"}],"wp:attachment":[{"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/media?parent=15640"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/categories?post=15640"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/icsesolutions.com\/wp-json\/wp\/v2\/tags?post=15640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}