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denpristay [2]
3 years ago
13

A circle with a radius of 3cm sits inside a circle with a radius of 11cm. What is the area of the shaded region? Round your answ

er to the nearest 100th. NOTE: The larger circle is shaded ( the smaller circle isnt )
Mathematics
1 answer:
BabaBlast [244]3 years ago
4 0

Answer:

A=351.68\ cm^2

Step-by-step explanation:

we know that

The area of the shaded region is equal to subtract the area of the smaller circle from the area of the larger circle

so

A=\pi(r_b^2-r_a^2)

we have

r_b=11\ cm ----> radius of large circle

r_a=3\ cm ----> radius of smaller circle

assume

\pi=3.14

substitute

A=3.14(11^2-3^2)=351.68\ cm^2

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