Pipe Circumference 18" and 9' deep how many cubic yards is this?

Question

The pipe circumference is 18" and the pipe is 9' deep, how many cubic yards is this?

Answer 1

0.05968310468 cubic yards

This one is right. I originally took circumference as diameter... duh. Sorry.

It gets simpler if you just convert everything to yards to begin with.

18" = 0.5 yards
9' = 3 yards
Radius in yards = (0.5/pi)/2 = 0.0795774729
Area of pipe end in yards = pi(0.0795774729 )² = 0.01989436823
volume of pipe in cubic yards = 0.01989436823 x 3 = 0.05968310468

Answer 2

If you are looking for the volume of the pipe then you need to do the following:

(By the way, 18" is 18 inches, and 9' is 9 feet)

1. Find the radius of the pipe in yards.
If circumference is 18", and circumference equals 2 pi radius, the radius is 2.866". 2.866 inches is the same as .0796 of a yard (divide 2.866 by the 36 inches in a yard)
r = .0796 yd

2. Convert the depth of the pipe into yards.
9' is the same as 3 yards (divide 9 feet by the 3 feet in a yard)
Depth = 3 yards

3. Find the volume of the pipe in cubic yards.
Volume = pi*radius^2*height
= (3.14)(.0796)^2(3)
=.0597

I hope this makes sense. Good Luck.

Answer 3

Convert the inches to yards, then apply (Pi)r^2*length.

Answer 4

Circumference=2piR=18inches=18/12x3=0.5yards
R= 0.5/2pi=0.08 yards
D=depth=9feet=9/12 yards=0.75yards
Volume =piR^2D=pi(0.08)^2(0.75)=0.015 cubic yards

Answer 5

challenging aspect. look into with bing and yahoo. that will could actually help!