Question

A sphere used in a contest has a
diameter of 9 feet. What is the
volume of the sphere?

Answer 1

382 ft³ (3 s.f.)

Explanation:

`\boxed{volume \: of \: sphere = (4)/( 3)\pi {r}^(3) }`

Radius= diameter ÷2

Rdaius of sphere

= 9 ÷2

= 4.5 ft

Volume of sphere

`= (4)/(3) (\pi)(4.5)^(3)`

= 382 ft³ (3 s.f.)