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A toy is in the shape of a cone mounted on a hemisphere of the same base radius . If the volume of the toy is 231cm³ and it's diameter is 7cm ,find the height of the toy.. How????

Posted by Rudransh Nath Tripathi 7 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Sonika Sonika 7 years, 8 months ago

231=1/3πr square (h+2r) 231=1/3*22/7*7/2*7/2(h+2*7/2) 231=77/6(h+7) 231*6/77=h+7 6*3=h+7 18-7=h h=11

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