SOLUTION: Find the length of the radius of a circle whose circumference is 38 cm. Give exact answer.

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Question 663534: Find the length of the radius of a circle whose circumference is 38 cm. Give exact answer.
Answer by kevwill(135) About Me  (Show Source):
You can put this solution on YOUR website!
The circumference of a circle (c) is equal to the radius(r) times 2 pi.
c+=+2%2Api%2Ar
38+=+2%2Api%2Ar
38%2F2+=+%282%2Api%2Ar%29%2F2
19+=+pi%2Ar
19%2Fpi+=+%28pi%2Ar%29%2Fpi
19%2Fpi+=+r
r+=+19%2Fpi cm