From a cubical piece of wood of side 21 cm a hemisphere is carved out in such a way that the diameter of the hemisphere is equal to the side of the cubicle please
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Step-by-step explanation:
Volume of the Hemisphere = 2/3 x pi x r x r x r
= 2/3 x 22/7 x 21/2 x 21/2 x 21/2
= 11 x 21 x 21/2
= 2425.5 cm^3
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