SOLUTION: How do you find the volume of a cone with a diameter of 9 and a height of 21?

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Question 848586: How do you find the volume of a cone with a diameter of 9 and a height of 21?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Vol+=+pi%2Ar%5E2%2Ah%2F3
r = 9/2, h = 21