Calculate the volume in cu. ft. of a section of drainage pipe that measures 8 feet in length and 24 inches in diameter.

90.4 cu ft.?

The forumla for the volume of a cylinder is

V= pi*r^2 * h
V= (3.14*1)^2 * 8
V = ?

how can I calculate the volume in cu.ft. of a drainage pipe that measures 8 feet in length and 24 inches in diameter.?

To calculate the volume of a section of drainage pipe, you need to know the length and the diameter of the pipe. In this case, the length is given as 8 feet, and the diameter is given as 24 inches.

To start, let's convert the diameter from inches to feet. Since there are 12 inches in a foot, the diameter is 24 inches / 12 = 2 feet.

Now, the volume of a cylindrical shape is calculated using the formula V = πr²h, where V is the volume, π is a constant (approximately 3.14159), r is the radius, and h is the height or length.

In this case, the length is 8 feet, so h = 8 feet. And the radius is half the diameter, so r = 2 / 2 = 1 foot.

Now, we can substitute the values into the formula:

V = π * (1 foot)² * 8 feet
= 3.14159 * 1² * 8
= 3.14159 * 1 * 8
= 25.13272 cubic feet (approx.)

So, the volume of the section of drainage pipe is approximately 25.13272 cubic feet. This is different from the value you mentioned, 90.4 cubic feet. It seems there might have been an error in the calculations or data provided. Please check your values again or provide additional information if needed.