1. Solids of Revolution PART DEUX: WaShErS Rita Korsunsky
Region is revolving around the x-axis and y-axis
Rita Korsunsky

2. WASHERS method of finding the volume of the solid
The region is
revolved around a
fixed line (x-axis)
The volume can be imagined to be created from an infinite number of infinitely thin washers
link

3. Find the volume V of a solid when the region between the graphs of g(x) and f(x) on [a,b] is rotated around the horizontal line.
V = difference between the volumes created by rotating the regions bounded by the graphs of g(x) and f(x) on [a,b] separately around the same line

4. Example 1
The region bounded by the graphs of the equation x2 = y – 2 and 2y – x – 2 = 0 and by the vertical lines x = 0 and x = 1 is revolved around the x-axis. Find the volume of the resulting solid

5. Example 2 8 R r