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16 May, 20:15

A hemisphere has a volume of 18π cm3. Find its radius

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  1. 16 May, 20:59
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    Volume is half that of a sphere V = (1/2) * (4/3) * pi*r^3 = 18pi - > 2/3 r^3 = 18 - >r^3 = 18 * (3/2) - > r^3 = 27 = 3*3*3 r=3
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