Question

Find the volume of the sphere whose radius is 2r?

Answer 1

`V = 32/3 pi r^3`

Explanation:

Given: sphere with radius `= 2r`

Volume equation: `V = 4/3 pi r^3`

Given sphere volume:

`V = 4/3 pi (2r)^3 = 4/3 pi 2^3 r^3 = 4/3 pi 8 r^3 = 32/3 pi r^3`