Verified answer

Base of the cylinder is a circle with

.....Circumference = 2π r = 25.12 in.

That means that the radius of the circle is

.....25.12 in / 2π = 4 in.

Now that we have the radius, we can calculate the area of the circle:

.....Area = π r² = π(4)² = 16π in²

The volume of the pipe is

.....Volume = Area • length of the pipe

.....Volume = 16π in² • 66 in

.....Volume = 16 (3.14)(66) in³

.....Volume = 3315084 in³.....................ANS