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Yuliya22 [10]
3 years ago
7

Find the area of the shaded regions:

Mathematics
1 answer:
Crank3 years ago
6 0

First, we'll find the area of the large section, including the smaller section that is white.

Area of a circle: pi x r^2

A = pi x 7^2

A = 49pi x 120/360

A = 49/3 pi cm^2

Now, we'll find the area of the small section.

A = pi x 3^2

A = 9 pi x 120/360

A = 3pi cm^2

All that's left to do now is subtract.

49/3 pi - 3 pi

40/3 pi cm^2

(or 13 1/3 = 13.33 cm^2)

Hope this helps!

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4a+6b=10<br> 2a-4b=12<br><br> what does 12a =?
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