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Nonamiya [84]
3 years ago
10

Find the area and the circumference of a circle with radius 7 ft.

Mathematics
1 answer:
Aleks04 [339]3 years ago
4 0

Answer:

Area is 307.72 ft^2

Circumference is 43.96 ft

Step-by-step explanation:

Area is 2pir^2

Circumference is 2rpi

pi is about 3.14

A=2pi(7)^2

A= 98pi which is about 307.72 ft^2

C= 2(7)pi

C= 14pi which is about 43.96 ft

(I'm not sure whether they want the answer left in terms of pi or not)

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Answer:

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Step-by-step explanation:

we know that

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C=\pi D

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in this problem we have

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substitute

C=\pi (56) -----> equation that give the value of the circumference

C=56 \pi\ ft

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