### Home > APCALC > Chapter 11 > Lesson 11.3.1 > Problem 11-89

11-89.

**Multiple Choice: **The base of a solid is the region between the curve and the

*-axis on the interval*

*-axis are semicircles. The volume of the solid is:*

The diameter of each semicircle is .

The area of each semicircle is

The width of each cross-section is

*.*