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The circumference of a circle is 18π cm. What is the area, in square centimeters? Express your answer in terms of \piπ.
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The circumference of a circle is 18π cm. What is the area, in square centimeters? Express your answer in terms of \piπ.

User Lawrence Cherone
by
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1 Answer

2 votes

Answer:

Below

Explanation:

Circumference of circle = pi * 2r

18 pi = pi 2r

r = 9

Area = pi r^2 = pi (9^2) = 81 pi

User Dtyler
by
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