Question

The diameter of a beach ball is 10 inches. How many cubic inches of air can the beach ball hold? Use 3.14 for Pi. Round to the nearest tenth of a cubic inch.

Answer 1

523.3 in cubed

Explanation:

The formula for the volume of a sphere is 4/3 pir cubed

Our diameter is 10 inches. Since the radius is always half the diameter, the radius must be 5 inches. We can use this value to find the volume.

V=4/3 pi5 cubed

5 cubed=5 times 5 times 5=125

V=4/3 times pi 125

4/3 times 125 =166.667

V=166.667 pi

pi=3.14

V=166,667 times 3.14 =523.3 in cubed

Answer 2

523.3

Explanation:

The volume of a sphere (see image)