CR-37 Plumbing Power-Up 2026 – Dive into Success with Confidence!

Question: 1 / 400

If a pipe has an inside diameter of 3 inches and it is 20 feet long, what is its volume?

0.75 cubic feet

0.98 cubic feet

To find the volume of a pipe, you can use the formula for the volume of a cylinder:

\[ \text{Volume} = \pi r^2 h \]

where $ r $ is the radius and $ h $ is the height (or length of the pipe in this case).

1. Calculate the radius of the pipe:

- The diameter is given as 3 inches, so the radius $ r $ would be half of that:

\[ r = \frac{3}{2} = 1.5 \text{ inches} \]

2. Convert the radius to feet since the length is given in feet:

- $ 1.5 \text{ inches} = \frac{1.5}{12} = 0.125 \text{ feet} $

3. The length of the pipe is already in feet, stated as 20 feet.

4. Substitute the values into the volume formula:

\text{Volume} = \pi (0.125)^2 (20)

= \pi (0.015625)(20)

= \pi

1.15 cubic feet

1.30 cubic feet

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