{"id":18996,"date":"2026-05-19T23:05:39","date_gmt":"2026-05-19T17:05:39","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/diagonals-in-a-15-sided-polygon\/"},"modified":"2026-05-19T23:05:39","modified_gmt":"2026-05-19T17:05:39","slug":"diagonals-in-a-15-sided-polygon","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/diagonals-in-a-15-sided-polygon\/","title":{"rendered":"Diagonals in a 15-sided Polygon"},"content":{"rendered":"<p>How many diagonals does a polygon with 15 sides have?<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>90<\/li>\n<li>30<\/li>\n<li>105<\/li>\n<li>12<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2784,2782],"subject":[2744],"education_level":[1894],"class_list":["post-18996","mcq","type-mcq","status-publish","hentry","topic-diagonals","topic-polygons","subject-geometry","education_level-grade-8"],"mcq_note":"A diagonal joins two non-adjacent vertices. Use n(n \u2212 3) \u00f7 2; for 15 sides, that gives 90 diagonals.","mcq_options":[{"right":"yes","answer":"90"},{"right":"no","answer":"30"},{"right":"no","answer":"105"},{"right":"no","answer":"12"}],"multi_answers":"no","subject_terms":[{"id":2744,"title":"Geometry","slug":"geometry"}],"topic_terms":[{"id":2784,"title":"Diagonals","slug":"diagonals"},{"id":2782,"title":"Polygons","slug":"polygons"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/18996","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq"}],"about":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/types\/mcq"}],"author":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/users\/39"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/comments?post=18996"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=18996"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=18996"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=18996"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=18996"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}