{"id":19159,"date":"2026-05-19T23:45:49","date_gmt":"2026-05-19T17:45:49","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/edges-using-euler-formula-8\/"},"modified":"2026-05-19T23:45:49","modified_gmt":"2026-05-19T17:45:49","slug":"edges-using-euler-formula-8","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/edges-using-euler-formula-8\/","title":{"rendered":"Edges Using Euler Formula"},"content":{"rendered":"<p>A convex polyhedron has 9 faces and 9 vertices. Using Euler&#8217;s formula, how many edges does it have?<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>0<\/li>\n<li>81<\/li>\n<li>18<\/li>\n<li>16<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2798,2797],"subject":[2744],"education_level":[1894],"class_list":["post-19159","mcq","type-mcq","status-publish","hentry","topic-euler-formula","topic-nets-and-solids","subject-geometry","education_level-grade-8"],"mcq_note":"Euler\u2019s formula is V \u2212 E + F = 2, so E = V + F \u2212 2. Here E = 9 + 9 \u2212 2 = 16.","mcq_options":[{"right":"no","answer":"0"},{"right":"no","answer":"81"},{"right":"no","answer":"18"},{"right":"yes","answer":"16"}],"multi_answers":"no","subject_terms":[{"id":2744,"title":"Geometry","slug":"geometry"}],"topic_terms":[{"id":2798,"title":"Euler Formula","slug":"euler-formula"},{"id":2797,"title":"Nets and Solids","slug":"nets-and-solids"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/19159","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=19159"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=19159"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=19159"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=19159"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=19159"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}