###### Asked in Math and ArithmeticVolume

Math and Arithmetic

Volume

# What is the volume of a cylinder 39 IN tall 24 IN across?

## Answer

###### Wiki User

###### February 02, 2009 6:21AM

The volume of a 39 inch cylinder that has a diameter of 24 inches is approximately 10.21 cubic feet. The base is a circle of a radius of 1 foot. The height is a little less than four feet, actually 39/12 feet. The area of the base is Pi x R x R. That is 3.14159 x 1 x 1. Multiply this by the height, and you get 3.14159 x 39/12, or 10.21 cubic feet. About the size of the inside of a 75 gallon water heater. Most water heaters are about this tall on their inside, and are usually 16 to 24 inches in diameter.

## Related Questions

###### Asked in Math and Arithmetic, Algebra

### What is the volume of a cylinder 24 inches in diameter and 36 inches long?

The volume of a cylinder can be expressed as
V = (pi)r2h
where V is the volume, r is the radius, and
h is the height. (The variables stuck together mean to
multiply)
If the diameter of the cylinder is 24 in, then the radius is
half of that, or 12 in.
And the height (length) is 36 in.
V = (pi)r2h
V = (pi)(12)2(36)
V = (pi)(144)(36)
So now, the volume is officially 5,184 times pi, but if you want
to approximate, it would be
16,286.016 in3