A cylindrical piece of iron pipe is shown below. The wall of the pipe is 0.75 inch thick, and the pipe is open at both ends: The figure shows a cylinder of height 12 inches and diameter 8 inches.

What is the approximate inside volume of the pipe? (6 points)

398 cubic inches
603 cubic inches
565 cubic inches
412 cubic inches

(A)398 cubic inches

Step-by-step explanation:

Given a cylindrical piece of iron pipe with the following dimensions:

Therefore: External radius =4 Inches

Since the wall of the pipe is 0.75 inch thick,

Internal Radius =4-0.75 =3.25 Inches

Volume of a Cylinder =

Inside Volume of the Pipe

The correct option is A.

what is the original number? you forgot to add it.

c. side angle side. u shares the same sides