Question

The radius of a sphere is 2r, then its volume will be ______.

Options

• `4/3 pir^3`

• `4pir^3`

• `(8pir^3)/3`

• `32/3pir^3`

Answer 1

The radius of a sphere is 2r, then its volume will be `underlinebb(32/3pir^3)`.

Explanation:

Given, the radius of a sphere is 2r.

The volume of a sphere = `4/3` × (radius)³

Thus, the volume of the given sphere = `4/3 xx pi xx (2r)^3`

= `4/3 xx pi xx 8 xx r^3`

= `(32)/3 pir^3`