SOLUTION: The area of a circle 28 square meters. What is its circummference?

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Question 208839: The area of a circle 28 square meters. What is its circummference?
Answer by Alan3354(69443) About Me  (Show Source):
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The area of a circle 28 square meters. What is its circummference?
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Area = pi*r^2
r = sqrt(Area/pi)
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C = 2 pi*r
C = 2 pi(sqrt(Area/pi))
C = 2 pi(sqrt(28/pi)) = sqrt(4pi^2*28/pi)
= sqrt(112pi)
= ~ 18.758 meters