1. The problem statement, all variables and given/known data I have to go around and find the volume of a silo-shaped trash can using solid of revolution height 91cm Circumference 119.3cm Diameter 15cm http://common.csnstores.com/United-Receptacle-European-Designer-15-Gal.-Round-Top-Receptacle~img~UR~UR1180_l.jpg [Broken] is what the trash can looks like. I need list of the equations(s) of the curve(s) which are going to be revolved around an axis. I also need to state the upper and lower limits for the equation(s). Then intergrate the curve(s) 2. Relevant equations I want to use [tex]\int[/tex] pi r^2 dx and from 0 to r then do the volume of a sphere and divide by half. But I believe this is wrong. 3. The attempt at a solution I tried that equation I wrote and was not right. I think I have to use the shells intergration but dont know the set up.