{"id":20972,"date":"2026-05-25T16:51:12","date_gmt":"2026-05-25T10:51:12","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/circle-area-using-radius-10\/"},"modified":"2026-05-25T16:51:12","modified_gmt":"2026-05-25T10:51:12","slug":"circle-area-using-radius-10","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/circle-area-using-radius-10\/","title":{"rendered":"Circle Area Using Radius"},"content":{"rendered":"<p>Using \u03c0 = 3.14, find the area of a circle with radius 40 m.<\/p>\n<ul class=\"quiz-options\">\n<li>251.43 m\u00b2<\/li>\n<li>1600 m\u00b2<\/li>\n<li>5024 m\u00b2<\/li>\n<li>125.6 m\u00b2<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2780,2875],"subject":[2746],"education_level":[1894],"class_list":["post-20972","mcq","type-mcq","status-publish","hentry","topic-area","topic-circle","subject-mensuration","education_level-grade-8"],"mcq_note":"Area of a circle = \u03c0r\u00b2. Here r = 40, so area = 3.14 \u00d7 40 \u00d7 40 = 5024 square m. The radius is multiplied by itself first because area depends on r\u00b2. Be careful not to use 2\u03c0r here; that formula gives circumference, not area. The correct choice is 5024 m\u00b2.","mcq_options":[{"right":"no","answer":"251.43 m\u00b2"},{"right":"no","answer":"1600 m\u00b2"},{"right":"yes","answer":"5024 m\u00b2"},{"right":"no","answer":"125.6 m\u00b2"}],"multi_answers":"no","subject_terms":[{"id":2746,"title":"Mensuration","slug":"mensuration"}],"topic_terms":[{"id":2780,"title":"Area","slug":"area"},{"id":2875,"title":"Circle","slug":"circle"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/20972","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=20972"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=20972"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=20972"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=20972"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=20972"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}