Question

What is the area of the fire pit? (Use 3.14 for pi.)

Answer 1

`Area = 65.94`

Explanation:

I will assume that the shaded region is the fire pit

Given

`R = 5`

`r = 2`

Required

Determine the area of the fire pit

First, calculate the area of the big circle.

`A_2 = \pi R^2`

Area of the small is:

`A_1 = \pi r^2`

The area of the pit is:

`Area = A_2 - A_1`

`Area = \pi R^2 - \pi r^2`

`Area = \pi (R^2 - r^2)`

`Area = 3.14 (5^2 - 2^2)`

`Area = 3.14 (25 - 4)`

`Area = 3.14 * 21`

`Area = 65.94`