Volume of a Tube Converted to Gallons
Date: 08/01/97 at 18:15:13 From: Anonymous Subject: Volume of a tube converted to gallons I have a length of round pipe that is 4" in diameter and 10 feet long. How many gallons of water will it hold if filled and sealed at both ends? Thanks Doc! Bob
Date: 08/02/97 at 23:26:07 From: Doctor Scott Subject: Re: Volume of a tube converted to gallons Hi Bob! First we need to find the volume of the tube. From geometry, its volume is (pi)(r^2)h, where r is the radius and h is the height. We need, of course, to make sure that all of our dimensions are expressed in the same units. It will probably be easiest to change everything to inches. Then, once you know the volume of the tube in cubic inches, we can change it to cubic feet, by dividing by 12^3. (Since 12 inches = 1 foot, 12^3 inches = 1 cubic foot). Finally, 1 cubic foot is approximately 7.5 gallons Good luck! -Doctor Scott, The Math Forum Check out our web site! http://mathforum.org/dr.math/
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