### Home > APCALC > Chapter 2 > Lesson 2.3.3 > Problem2-128

2-128.

Rotate the flag shown at right (created by the region under the curve for $0\le x\le4$) about the $x$-axis. Describe (and draw) the shape that is created and calculate its volume.

In order to visualize the resultant solid (and compute its volume), first dissect the flag into familiar-shaped pieces.

Use the eTool below to visualize the flag.
Click the link at right for the full version of the eTool: Calc 2-128 HW eTool