Question

The diameter of a basketball is 9.39 inches. Which is closest to the number of square inches of material used in constructing a basketball?

Answer 1

Area,
`A=69.21\ \text{inches}^2`

Explanation:

We have,

The diameter of a basketball is 9.39 inches.

It is required to find the number of square inches of material used in constructing a basketball. It means we need to find the area of basketball. It is given by :

`A=\pi r^2`

r is radius of basketball, r = 4.695 inches

So,

`A=3.14* (4.695)^2\\\\A=69.21\ \text{inches}^2`

So, the area of the basketball is
`69.21\ \text{inches}^2`.