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Area of the circle = pi R2 = (225 pi) square feet

Volume = (225 pi) x (0.25) cubic feet

1 cubic yard = 27 cubic feet

Volume = (225 pi) / (4 x 27) = 6.545 cubic yards (rounded)

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2009-09-01 17:48:57
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Q: How many cubic yards in an 30 foot diameter circle 3 inches thick with sand?
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