SOLUTION: the area of a cirle is 87 sq. feet,find the diameter of the circle.

Algebra ->  Surface-area -> SOLUTION: the area of a cirle is 87 sq. feet,find the diameter of the circle.       Log On


   

Question 569219: the area of a cirle is 87 sq. feet,find the diameter of the circle.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
the area of a cirle is 87 sq. feet, find the diameter of the circle.
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Area = (pi)r^2
87 = (pi)r^2
r^2 = 87/pi
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radius = sqrt(87/pi)
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diameter = 2[sqrt(87/pi)]
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Cheers,
Stan H.
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