SOLUTION: The circumference of a circle is 20Pi. What is the area of the circle? Leave your answer in terms of Pi

Question 80300: The circumference of a circle is 20Pi. What is the area of the circle? Leave your answer in terms of Pi
Found 2 solutions by stanbon, checkley75:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The circumference of a circle is 20Pi. What is the area of the circle? Leave your answer in terms of Pi
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Circmference = (pi)d = 20pi
Therefore diameter = 20 and radius=10
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Then Area = (pi)r^2 = (pi)10^2 = 100pi
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Cheers,
Stan H.
Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
C=2piR
20pi=2piR DIVIDE BOTH SIDES BY pi
20=2R
R=20/2
R=10 THUS THE AREA OF THIS CIRCLE IS
A=piR^2
A=pi10^2
A=100pi

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