SOLUTION: The circumference of a circle is 80 inches. Find the radius to the nearest tenth of an inch.

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Question 213541: The circumference of a circle is 80 inches. Find the radius to the nearest tenth of an inch.
Found 2 solutions by rfer, checkley77:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
C=3.14d
d/2=r
(80/3.14)/2=12.7 in

Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
80=2*PI*R
80=2*3.14*R
80=6.28*R
R=80/6.28
R=12.7 INCHES IS THE RADIUS.