What is the volume of a beach ball with a diameter of 18 inches?

The ball can be modeled as a sphere.

The volume of a sphere is given by:

V = (4/3) * pi * r ^ 3

Where,

r: radius of the sphere.

We have then:

V = (4/3) * pi * (18/2) ^ 3

V = 3053.6 in ^ 3

Answer:

the volume of a beach ball with a diameter of 18 inches is:

V = 3053.6 in ^ 3