In this lesson we are going to take a look at using integration to compute volumes by means of the method called Method of Disks and Washers. The Disc Method is used for calculating the volume of a solid of revolution of a solid-state material when integrating along the axis of revolution. This method models the resulting three-dimensional shape as a stack of an infinite number of disks of varying radius and infinitesimal thickness. It is also possible to use the same principles with washers instead of disks (the Washer Method') to obtain hollow solids of revolutions. So, we are going to introduce and explain equations for this method and then we will do some examples.
*These practice questions are only helpful when you work on them offline on a piece of paper and then use the solution steps function to check your answer.
Volume by Method of Disks and Washers
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.