SOLUTION: How do I find the radius of a circle whose circumference is 28 inches?

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Question 4809: How do I find the radius of a circle whose circumference is 28 inches?
Answer by rapaljer(4671) About Me  (Show Source):
You can put this solution on YOUR website!
C+=+2+%2A+pi+%2A+r+, so if you know the circumference C = 28 in, then the unknown is r. Divide both sides by 2+pi:
20+=+2%2A+pi+%2Ar
20%2F%282+%2Api%29+=+%282+%2Api+%2Ar%29%2F%282+%2Api%29
10%2F+pi+=+r+
r = 3.18 in. (approximately)

R^ at SCC