Question

Find the area of the shaded regions.

Answer 1

Answer: About 21.98 cm²

Explanation:

First, find the area of the large shaded circle:

`r^(2) \pi =3^(2) \pi =9\pi`

Find the area of the two small unshaded circles:

`1) r^(2) \pi =1^(2) \pi =1\pi \\2) r^(2) \pi =1^(2) \pi=1\pi`

Subtract the area of the small circle from the large circle:

`9\pi -1\pi -1\pi =9\pi -2\pi =7\pi`

Therefore, the area of the shaded region is:

`7\pi =7*3.14=21.98`