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OpenStudy (anonymous):
What is the radius of a circle with circumference 13ft
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hero (hero):
\(C = 2 \pi r\) \(C = 13\) \(13 = 2 \pi r\) \(\dfrac{13}{2\pi} = r\)
OpenStudy (anonymous):
If circumference is 2πr², then radius is r/2π. So radius=13/2π=~20.42
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