SOLUTION: a water tank 20' high and 12'4" in diameter will hold _________ gallons

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Question 1059169: a water tank 20' high and 12'4" in diameter will hold _________ gallons
Answer by solve_for_x(190) About Me  (Show Source):
You can put this solution on YOUR website!
Volume+=+pi%2Ar%5E2%2Ah

With r = 12'4" /2 = 6'2" = 74 inches, and h = 20' = 240 inches, the volume of the tank is:

Volume+=+pi%2A%2874%29%5E2%2A%28240%29+=+4128806.729 cubic inches

Since one gallon is equal to 231 cubic inches, the volume of the tank is equal to:

4128806.729 cubic inches / 231 cubic inches per gallon = 17873.6 gallons