SOLUTION: A medicine ball has a diameter of 15", how many cubic feet of sand is neededd to fill it?

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Question 1055433: A medicine ball has a diameter of 15", how many cubic feet of sand is neededd to fill it?
Answer by Alan3354(69443) About Me  (Show Source):
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A medicine ball has a diameter of 15", how many cubic feet of sand is needed to fill it?
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r = 7.5
Vol+=+4pi%2Ar%5E3%2F3 cubic inches.
1 cubic foot = 12*12*12 = 1728 cubic inches