If the diameter of a hemisphere is 21 cm, then what is the volume $$(in cm^3)$$ of hemisphere? ?->(Show Answer!)

1. If the diameter of a hemisphere is 21 cm, then what is the volume $$(in cm^3)$$ of hemisphere?

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By: anil on 05 May 2019 01.47 am

Radius of hemisphere = $$frac{21}{2}$$ cm => Volume of hemisphere = $$frac{2}{3}pi r^3$$ = $$frac{2}{3} imesfrac{22}{7} imes(frac{21}{2})^3$$ = $$11 imes(21)^2 imesfrac{1}{2}$$ = $$frac{4851}{2}=2425.5$$ $$cm^3$$ => Ans - (D)

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