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| Math Central | Quandaries & Queries |
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Subject: liquid I have 350 ft. of 3/8 ID tubing. How many 64 oz. gallons of liquid will it hold? |
Hi Fred,
The volume of a cylinder is given by
V = π r2 h
where r is the radius of the cylinder and h is the height(length). Your cylinder has a length of 12 
350 = 4200 inches. Your tubing has a 3/8 inch inside diameter so the radius is 3/16 inches. Thus the volume is
V = π (3/16) 2
Since you told us you are in the US I expect you want US gallons which are 128 fluid ounces not 64 fluid ounces. One US gallon is 231 cubic inches so your tubing has a volume of
V = 463.9/231 = 2 US gallons
Penny
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