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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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We can calculate the length of AB using the Pythagorean Theorem, where:

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So, replacing PA by 34 and PB by 16 and solving for AB, we get:

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Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.  

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(Please have a look at the attached photo)

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Hope it will find you well.

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