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OpenStudy (anonymous):
The formula for the circumference C of a circle with radius r is C = 2πr. What is a formula for π (pi) of the circle in terms of the circumference and radius?
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OpenStudy (anonymous):
2(pi)r =C (pi)r= C/2------> divide both sides by 1/2 to cancel two in the left side (pI) = C/2r-------> divide it with 1/r to cancel r in the left side (pi) = C/2r
OpenStudy (anonymous):
thanks you :D
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