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31-05-2021
Mathematics

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The circumference of a circle is 22π in. What is the area, in square inches? Express your answer in terms of π

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wegnerkolmp2741o wegnerkolmp2741o

31-05-2021

Answer:

A = 121 pi in^2

Step-by-step explanation:

The circumference is given by

C = 2 * pi*r

22 pi = 2 * pi *r

Divide each side by 2 pi

22 pi / (2 pi) = 2 pi r / (2pi)

11 = r

Now find the area

A = pi r^2

A = pi (11)^2

A = 121 pi in^2

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