SOLUTION: If a unit circle has a radius of 1 inch, what is its approximate measurement of circumference?

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Question 821458: If a unit circle has a radius of 1 inch, what is its approximate measurement of circumference?
Answer by TimothyLamb(4379) About Me  (Show Source):
You can put this solution on YOUR website!
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c = 2 pi r
c = 2 pi 1
c ~= 6.2832
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