SOLUTION: what is the area of a circle if the diameter is 4pi.

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Question 183122: what is the area of a circle if the diameter is 4pi.
Answer by Alan3354(69443) About Me  (Show Source):
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what is the area of a circle if the diameter is 4pi.
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radius = 2pi
Area = pi(2pi)^2
Area = 4pi^3
Area = ~ 39.48 sq units