in a sphere,if radius is doubled,find the volume of it.
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volume of a sphere =4/3πr³
v=4/3πr³
if radius is doubled
then V' = 4/3π(2r)³ = 8(4/3πr³)
V' = 8V
show new volume equal to 8 times of original volume .
v=4/3πr³
if radius is doubled
then V' = 4/3π(2r)³ = 8(4/3πr³)
V' = 8V
show new volume equal to 8 times of original volume .
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