Question

How much air would be needed to fill a bouncy ball with a radius of 9 cm?

A. 108π cm3

B. 486π cm3

C. 972π cm3

D. 3052π cm3

Answer 1

The volume of a sphere = (4/3)
`\pi`r^3

r = radius

In our problem,

r = 9 cm

To find the volume of this sphere, plug our radius into the volume equation.

V = (4/3)
`\pi`(9)^3 = 972
`\pi`cm^3

The correct answer is C

Answer 2

Answer: c.

Explanation: