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OpenStudy (anonymous):
How to find circumference given the diameter using pi
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OpenStudy (rulnick):
C = pi times diameter
OpenStudy (anonymous):
C=PiD
OpenStudy (anonymous):
I got 1.8840
OpenStudy (anonymous):
what was D
OpenStudy (anonymous):
1.5
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OpenStudy (rulnick):
If diameter is 1.5 (or 3/2) then circumference is 3pi/2. Be careful, pi is NOT 3.14. If you replace pi with a decimal, you are approximating the answer. The only exact answer is with pi as pi.
OpenStudy (rulnick):
So circumf here is approx. 4.71238898..., or exactly 1.5pi or 3pi/2.
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