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How do you solve a circumference of a circle is 18 pi?

Anonymous

∙ 14y ago

Updated: 12/15/2022

C = 2 x r x pi

Since your circumference is known you can put that into the circumference equation.

18pi = 2 x r x pi

Divide 2 and pi from both sides and you get this

r = 9

your radius of your circle is 9

Wiki User

∙ 14y ago

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