Posted by **Jen** on Tuesday, September 30, 2008 at 9:36pm.

Calculate the Volume in Cubic Feet of a section of drainage pipe that measures 8 feet in length and 24 inches in diameter. I know that all measurements must be un the same units.

So there re 12 inches in 1 foot...so it would be 12*8=96 inches

3.14*12=37.68*12=452.16*96=43407.36

then I have to convert to cubic feet.

43407.36^1728= 25.12 cubic feet

IS this correct

- Math -
**Ms. Sue**, Tuesday, September 30, 2008 at 9:38pm
It seems to me that it's easier to convert the radius to 1 foot and then solve the problem.

- Math -
**Jen**, Tuesday, September 30, 2008 at 9:47pm
How many cubic feet in a foot?

- Math -
**PsyDAG**, Wednesday, October 1, 2008 at 1:30pm
There are no cubic feet in a foot. However, there are 12^3 (12 * 12 * 12) cubic inches in a cubic foot.

For the volume of a drainage pipe (which I assume is circular), you need to multiply the area of a circle (Pi * r^2) by the length. It doesn't look like you have done that.

I hope this helps a little more. Thanks for asking.

## Answer this Question

## Related Questions

- Math - Could someone please help me? calculate the volume in cu. ft of a section...
- Math - Calculate the volume in cu. ft. of a section of drainage pipe that ...
- math - Using this formula: V=LWH Find the volume(v)of a toy box with length (L) ...
- 6th grade - rectangular prism: height 7 feet, width 4 feet and length 3 feet ...
- math - concrete can be purchased cubic yard. How much will it cost to pour a ...
- To DrBob202 - Bob, This is what you said to do but i'm still not getting the ...
- math - A storage area measures 12 feet 6 inches in width by 16 feet in length ...
- math - DAN WAS WALKING FROM ONE END OF THE MALL TO THE OTHER END. HE TOOK THE ...
- math - Dan was walking from one end of the mall to the other end. He took the ...
- math - a storage room measures 11.35 feet in length by 9.5 feet in width by 8.3 ...