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OpenStudy (anonymous):
A circle has a circumference of 56.5cm. What is the radius of the circle to the nearest tenth?
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OpenStudy (anonymous):
C=2*pi*r
OpenStudy (anonymous):
How do I find out the radius?
OpenStudy (anonymous):
\[56.5 = 2 * \pi*r\] Solve for r.
OpenStudy (anonymous):
Algebraically.
OpenStudy (anonymous):
?
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OpenStudy (isaiah.feynman):
Divide both sides by 2 pi
OpenStudy (anonymous):
You know all the values but r, do some algebra: |dw:1402535325037:dw|
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