SOLUTION: The circumference of a circular clock face is 13.12 centimeters more than three times the radius. Find the radius of the face. (Pi = 3.14)
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Question 666477: The circumference of a circular clock face is 13.12 centimeters more than three times the radius. Find the radius of the face. (Pi = 3.14) Answer by unlockmath(1688) (Show Source):
You can put this solution on YOUR website! Hello,
We know that Circumference = pi*2*radius so plug in the values known:
3r+13.12=3.14*2r
Simplify:
3r+13.12=6.28r
Subtract 6.28r and 13.12:
-3.28r=-6.84
Divide by -3.28
Radius= 2.1 cm (rounded off)
Make sense?
RJ
www.math-unlock.com
