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OpenStudy (anonymous):
Find the exact circumference of a circle with the given radius. 3¼ inches C = 6.25π in. 6.5π in. 23.25π in.
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Vocaloid (vocaloid):
circumference = 2*pi*r
OpenStudy (theraggedydoctor):
What is the formula for finding circumference of a circle?
OpenStudy (anonymous):
c=pi x r^2
OpenStudy (anonymous):
I think
Vocaloid (vocaloid):
nope, pi(r^2) is area, not circumference circumference = 2*pi*r
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OpenStudy (anonymous):
oh haha thanks. How would you solve that?
Vocaloid (vocaloid):
radius = 3 1/4 inches circumference = 2*pi*radius plug in radius and multiply
OpenStudy (anonymous):
thanks!
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