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OpenStudy (anonymous):
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OpenStudy (anonymous):
circumference = 2*pi*radius or pi*diameter
OpenStudy (anonymous):
The formula for circumference is 2pir
OpenStudy (anonymous):
If the radius is 12.5 then . . . 2(12.5)pi 25pi =
OpenStudy (anonymous):
78.5398
OpenStudy (anonymous):
Correct. If you are estimating to the 100th, then the answer is 78.54
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