joeytayler4 joeytayler4
  • 19-07-2022
  • Mathematics
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The circumference of a circle is 15π in. What is the area, in square inches? Express your answer in terms of \piπ.

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mathematics71
mathematics71 mathematics71
  • 19-07-2022

Answer:

the area would be 176.7

Step-by-step explanation:

You know the area of a circle is A = pi×r^2, so you need the radius.

You know C = 2pi×r, so r = C/(2pi)

r = 15pi / 2pi = 7.5

A = pi(7.5)^2 = 56.25pi ~ 176.715 square inches.

The area of the circle is about 176.7 square inches.

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