A circle with radius of 9 cm sits inside a circle with radius of 11 cm. What is the area of the shaded region? Round your final answer to the nearest hundredth.

Question

asked Apr 19, 2021 68.9k views

1 Answer

Sergei Nosov · Answer 1 · 2021-04-24T01:16:47+0000

Answer:

125.6

Step-by-step explanation:

Area of a circle = πr^2

Area of circle 1 = 3.14 × 11 × 11

=379.94cm^2

Area of circle 2= 3.14 × 9 ×9

=254.64cm^2

Area of a shaded region

=379.94cm^2 - 254.64cm^2

=125.60cm^2