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Nina [5.8K]
2 years ago
10

Can someone help me answer number 70 and 71 in the image because I am very lost

Mathematics
1 answer:
8090 [49]2 years ago
8 0

70). Answer Letter Choice, (C), 18 pi square units.

Area = pi r^2

D = 12

R = 6

Larger Circle: 36 pi

Find smaller circles, Subtract:

Diameter of larger circle is 12

Radius 6, also diameter of small circles (2)

pi r^2

D = 6

R = 3

pi = 9

2 circles

2 * 9 pi = Letter Choice, (C), 18 pi square inches

71). Answer Letter Choice, (B), 30.79 cm^2

72). Answer: 144

Hope that helps!!!! : )

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