{"id":20168,"date":"2026-05-22T00:27:12","date_gmt":"2026-05-21T18:27:12","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/using-22-7-find-the-area-of-a-circle-with-radius-18-cm\/"},"modified":"2026-05-22T00:27:12","modified_gmt":"2026-05-21T18:27:12","slug":"using-22-7-find-the-area-of-a-circle-with-radius-18-cm","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/using-22-7-find-the-area-of-a-circle-with-radius-18-cm\/","title":{"rendered":"Using \u03c0 = 22\/7, find the area of a circle with radius 18 cm."},"content":{"rendered":"<p>Using \u03c0 = 22\/7, find the area of a circle with radius 18 cm.<\/p>\n\n<ul class=\"quiz-options wp-block-list\">\n<li>113.14 cm\u00b2<\/li>\n<li>1018.29 cm\u00b2<\/li>\n<li>56.57 cm\u00b2<\/li>\n<li>1036.29 cm\u00b2<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2851],"subject":[2746],"education_level":[2495],"class_list":["post-20168","mcq","type-mcq","status-publish","hentry","topic-area-of-circle","subject-mensuration","education_level-grade-7"],"mcq_note":"Area of a circle = \u03c0 \u00d7 r\u00b2 = 3.14286 \u00d7 18 \u00d7 18 = 1018.29 cm\u00b2. The radius is used twice in r\u00b2, so be careful not to use the diameter directly in this formula. Squaring the radius means multiplying the radius by itself before multiplying by \u03c0. This formula measures the flat surface inside the circle, so the final unit must be a square unit such as cm\u00b2.","mcq_options":[{"right":"no","answer":"113.14 cm\u00b2"},{"right":"yes","answer":"1018.29 cm\u00b2"},{"right":"no","answer":"56.57 cm\u00b2"},{"right":"no","answer":"1036.29 cm\u00b2"}],"multi_answers":"no","subject_terms":[{"id":2746,"title":"Mensuration","slug":"mensuration"}],"topic_terms":[{"id":2851,"title":"Area of Circle","slug":"area-of-circle"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/20168","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=20168"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=20168"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=20168"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=20168"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=20168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}