Finding Revolving Volumes

I've been able to calculate a lot of my homework involving finding the volume of a revolving function around either the x or y axis. However, this one seemed to pose a challenge for me.

**Find the volume of the solid formed by rotating the region enclosed by **

about the http://hosted2.webwork.rochester.edu...22b824af51.png-axis.

If anyone could provide an explanation and solution to this problem, it would be greatly appreciated. I'd really like to understand what this problem is asking for.

Thanks!

-C.C.