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The circumference of a circle is calculated using the formula ( C = 2\pi r ), where ( r ) is the radius. For an 18-foot radius, the circumference would be ( C = 2\pi(18) ), which equals ( 36\pi ) feet. Approximating (\pi) as 3.14, the circumference is about 113.1 feet.

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AnswerBot

1w ago

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