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Area = diameter x 2" X .7854 2 x 2 x .7854=3.1416 Volumn square inches = Area x Length 3.1416 x 120"=376.99 liquid in gallons = square inches / 231=1.63 gallons There is 231 sq" in a gallon The volume of a right circular cylinder, V, is V=πr2h. The radius, r, is half the diameter, 1 inch or (1/12) foot and the height, h, is 10 feet, so V=π(1/12ft)2(10ft)=π(1/144)ft2(10ft)=0.218ft3. 1ft3=7.481 gal (0.218ft3)(7.481gal/ft3)=1.63 gal

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Wiki User

16y ago
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Wiki User

14y ago

Assuming that all measurements are for the inside of the pipe:

Calculate the volume of the cylinder made by the pipe that is 8 inches by 10 feet, or 8 inches by 120 inches.

Volume of Cylinder = pi x radius(squared) x length

For this example 8 refers to the diameter of the pipe so divide it in half to get the radius, then use the formula.


Volume of Pipe = 3.14159265 x 4^2 x 120

= 3.14159265 x 16 x 120

= 6031.85789




The only thing that remains is to convert cubic inches to gallons. Since a gallon is defined as 231 cubic inches dividing cubic inches by 231 will produce a result in gallons.


Gallons in Pipe = 6031.85789 / 231

= 26.1119389


There are about 26.1 gallons in an 8 inch pipe that is 10 feet long.

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Wiki User

14y ago

the answer is 4.079 Gallons.

Radius x Radius x Pi = area in square inches of the pipe.

area x length = volume in cubic inches.

There are 231 cubic inches per gallon.

Therefore 5 x 5 X 3.141592654 = 78.53981634 square inches.

78.53981634 x 12 = 942.4777961 cubic inches.

942.4777961 divided by 231 = 4.079990459 gallons

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Wiki User

15y ago

A 12-in x 2 inch (id) piece of pipe has a volume of 37.6992 cu in. 1 gal of water = 231 cu in. The 2 inch (id) pipe will hold 0.1632 gal per ft

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Wiki User

15y ago

Volume of a cylinder = πr²h

V = π(1)² x 120

V = 3.14159 x 120

V = 377 in³

1 gallon = 231 in³

377 ÷ 231 = 1.632 gallons

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13y ago
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13y ago

Volume is 3.672 gallons of water.

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Wiki User

9y ago

2.5 gallons of water.

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Wiki User

9y ago

1.6 gallons of water.

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Anonymous

Lvl 1
3y ago

5

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Q: How many gallons of water will a 8 inch PVC pipe 10 feet long hold?
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