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Length = 30*12 = 360 inches.

Area = Pi/4*(dia2) = 0.785398*100 = 78.5398 square inches

Volume = 78.5398*360 = 28,274.3339 cubic inches

US gallon = 231 cubic inches

28,274.3339 / 231 = 122.3997 US gallons.

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13y ago

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