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OpenStudy (anonymous):
The circumference (C) of a swimming pool is 47 feet. Which formula can you use to find the radius (r) if you know that C = 2πr ?
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OpenStudy (kamibug):
You just need to rearrange that formula so that you can solve for r. Divide both sides by 2pi to isolate r. r=C/2pi
OpenStudy (kamibug):
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OpenStudy (texaschic101):
C = 2 (pi) (r) 47 = 2 (pi)(r) 47/ ((2)(pi)) = r
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