Question

The radius of a sphere is 3 inches. Which represents the volume of the sphere

12.7 cubic inches
36.1 cubic inches
64.cubic inches
81.7 cubic inches

Answer 1

36

Explanation:

Answer 2

36π in³ ≈ 113.04 in³

Explanation:

The formula of a volume of a sphere:

`V=(4)/(3)\pi r^3`

R - radius

We have r = 3in.

Substitute:

`V=(4)/(3)\pi(3^3)=(4)/(3)\pi(27)=4\pi(9)=36\pi\ in^3`

Use the approximation of number pi
`\pi\approx3.14`

`V\approx36(3.14)=113.04\ in^3`