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How do you find the radius when you know the volume of a sphere?
Wiki User
∙ 11y ago
The volume of the sphere is: V=4πr3/3.
Then r=0,62 x (cubic root from V)
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Call the volume 'V'.
Call the radius 'R'.
The volume of a sphere is V = 4/3 (pi) R3 .
Multiply both sides of the formula by 3/4 :
3/4 V = (pi) R3
Divide each side by pi :
3V/4 pi = R3
Take the cube root of each side :
R = cube root of (3V/4 pi)
The first answer up above simplified this somewhat, by taking (3/4 pi)
out of the cube root, and you wind up with:
R = 0.62 times the cube root of ( V ) . (rounded)
Wiki User
∙ 11y ago
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