Question

Please help me if you know, I would appreciate if you could explain how to do this!

In the figure, the area of the shaded region is 299π cm²
What are the exact areas of the inner and outer circles?
Also, the answers need to be in cm^2

Answer 1

See answers below

Explanation:

Entire outer circle area = pi r^2 = pi 18^2 = 324 pi cm^2

if you subtract the small unshaded circle you get 299 pi

324 pi - smaller circle = 299 pi

smaller circle = 25 pi cm^2