{"id":21071,"date":"2026-05-25T16:52:04","date_gmt":"2026-05-25T10:52:04","guid":{"rendered":"https:\/\/mcqacademy.com\/en\/mcq\/sphere-volume-from-radius-14\/"},"modified":"2026-05-25T16:52:04","modified_gmt":"2026-05-25T10:52:04","slug":"sphere-volume-from-radius-14","status":"publish","type":"mcq","link":"https:\/\/mcqacademy.com\/en\/mcq\/sphere-volume-from-radius-14\/","title":{"rendered":"Sphere Volume from Radius"},"content":{"rendered":"<p>Using \u03c0 = 3.14, find the volume of a sphere with radius 3 mm.<\/p>\n<ul class=\"quiz-options\">\n<li>84.78 mm\u00b3<\/li>\n<li>4 units<\/li>\n<li>18.84 mm\u00b3<\/li>\n<li>113.04 mm\u00b3<\/li>\n<\/ul>\n","protected":false},"author":39,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","topic":[2882,2877],"subject":[2746],"education_level":[1894],"class_list":["post-21071","mcq","type-mcq","status-publish","hentry","topic-sphere","topic-volume-and-surface-area","subject-mensuration","education_level-grade-8"],"mcq_note":"Volume of a sphere = 4\/3 \u00d7 \u03c0r\u00b3. Substitute r=3: volume = 4\/3 \u00d7 3.14 \u00d7 3\u00b3 = 113.04 cubic mm. A sphere is a fully round solid, so its volume depends on the cube of the radius, r\u00b3. Cubing the radius means multiplying the radius by itself three times before applying 4\/3\u03c0. The answer is in cubic units, so the correct choice is 113.04 mm\u00b3.","mcq_options":[{"right":"no","answer":"84.78 mm\u00b3"},{"right":"no","answer":"4 units"},{"right":"no","answer":"18.84 mm\u00b3"},{"right":"yes","answer":"113.04 mm\u00b3"}],"multi_answers":"no","subject_terms":[{"id":2746,"title":"Mensuration","slug":"mensuration"}],"topic_terms":[{"id":2882,"title":"Sphere","slug":"sphere"},{"id":2877,"title":"Volume and Surface Area","slug":"volume-and-surface-area"}],"_links":{"self":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/mcq\/21071","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=21071"}],"wp:attachment":[{"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/media?parent=21071"}],"wp:term":[{"taxonomy":"topic","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/topic?post=21071"},{"taxonomy":"subject","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/subject?post=21071"},{"taxonomy":"education_level","embeddable":true,"href":"https:\/\/mcqacademy.com\/en\/wp-json\/wp\/v2\/education_level?post=21071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}