Page 87 - Calc for the Clueless

Example 12—

We will do our region one last time about the x axis.

Volumes By Section

The last part of this chapter is volumes by section. The sections are not circles but other shapes. Two examples
are given.

Example 13—

2
Find the volume of the following figure: Base bounded by y = ¼x and y = 4 in the x-y plane. Sections
perpendicular to the y axis are rectangles with heights of 1/3 the base.