SOLUTION: DO you know how to write a function rule for the circumference of a circle C(r) when you know the radius r?

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Question 739812: DO you know how to write a function rule for the circumference of a circle C(r) when you know the radius r?
Answer by fcabanski(1391) About Me  (Show Source):
You can put this solution on YOUR website!
The formula for the circumference of a circle given the radius is C=+2%2Api%2Ar


That's 2 times pi times r.

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