Question #6d9c2

1 Answer
Nov 5, 2016

v = 36 pi r^3 or v = 113.097 r^3

Explanation:

The volume of a sphere is computed using this formula

v = 4/3 pi r^3

such that:
v = volume
r = radius of the sphere

In this case, since you have a sphere with radius = 3r then you would need to substitute the given radius of the sphere to the value of r in the formula.

v = 4/3 pi r^3
v = 4/3 pi (3r)^3
v = 4/3 pi (27r^3)
v = 36 pi r^3
v = 113.097 r^3