SOLUTION: what is the circumference of a circle if the area is 25pi meters squared?

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Question 1053309: what is the circumference of a circle if the area is 25pi meters squared?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Find the relationship between area and circumference for a circle.
C=2pi%2AR
A=pi%2AR%5E2
So then,
R=C%2F%282pi%29
R%5E2=C%5E2%2F%284pi%5E2%29
Substituting into the area equation,
A=pi%2A%28C%5E2%2F%284pi%5E2%29%29
A=C%5E2%2F%284pi%29
So now,
25pi=C%5E2%2F%284pi%29
C%5E2=100pi%5E2
C=10pi