This file contains two written solutions for finding the area of an enclosed region and the volume generated by rotating an enclosed region. These types of problems are commonly found in calculus courses. Your students can benefit from having a collection of written solutions to help prepare them for the SAT and ACT, as well as for the AP calculus exam. If you would like for me to write you a solution guide for your students, then just let me know. In the meantime, please enjoy this lesson as a