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OpenStudy (anonymous):
Find the radius of a circle with the given circumference. 15pi ft.
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OpenStudy (anonymous):
radius is 7.5 or 15/2 ft
OpenStudy (anonymous):
circumference= diameter * pi., so your diameter is 15. Radius is half the diameter, so your radius is 7.5 ft
OpenStudy (anonymous):
2*pi*r = 15*pi 2r = (15*pi)/pi 2r = 15 r = 15/2 r = 7.5 ft
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