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

Algebra ->  Algebra  -> Customizable Word Problem Solvers  -> Geometry -> SOLUTION: The circumference of a circle is 80 inches. Find the radius to the nearest tenth of an inch.      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com
Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

   

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(3375) 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(9413) 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.