Question

A tube of tennis balls has the following measures: a 4 diameter of 4 inches and a height of 8 inches. What is the surface area of the tube of tennis balls?

Answer 1

40
`\pi` or 125.66

Explanation:

Use the formula 2
`\pi`r² + 2
`\pi`rh

2
`\pi`(2)² + 2
`\pi`(2)(8)

8
`\pi` + 32
`\pi`

= 40
`\pi` or 125.66