Question

Please answer this correctly

Answer 1

Explanation:

Shaded region = Area of large circle - Area of small circle

Area of circle =

`\pi {r}^(2)`

R of large circle = 11 + 9 = 20 ft

r of small circle = 11 ft

.....

Answer 2

1011.66

Explanation:

3.14 (20)^2-3.14 (9)^2

3.14(400-81)

3.14 (319)

1011.66