the radius of sphere is doubled .what percent of its volume increased?
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The formula for the volume of a sphere is V = (4/3) π r³
If r is doubled then you get 2r as the radius and V = (4/3) π * 8r³ ... so the volume is 8 times bigger.
The increased volume = New-Original
= 8-1
= 7 times
Percentage = 7 *100= 700 %
If r is doubled then you get 2r as the radius and V = (4/3) π * 8r³ ... so the volume is 8 times bigger.
The increased volume = New-Original
= 8-1
= 7 times
Percentage = 7 *100= 700 %
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