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 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)

I ask somebody else on line and they gave the equations intergral of x=15 from 0 to 76

and sqrt[225-(y-76)^2] from 76 to 91 is that right?