Find the volume of a sphere that has a surface area of 16π sq. in.

Sphere Surface Area = 4 • π • r²

radius = Sq Root (Sphere Surface Area / 4 • π)

radius = Sq Root (16 PI / 4 • π)

radius = Sq Root (4)

radius = 2


Sphere Volume   =   4/3 • π • r³

Sphere Volume   =   4/3 • π • 8

Sphere Volume   =   4.1887902048 * 8

Sphere Volume   =   33.51 cubic inches