- Tue Feb 19, 2013 2:08 pm
- Forum: Calculus
- Topic: add/sub axis of rota. when calc. volume of rotation
- Replies:
**1** - Views:
**1609**

I've seen many examples of volume of rotation problems off the y=0 and x=0 axis . . and I am totally confused as to whether add or subtract the axis of rotation when determining radius. For example (outer radius - inner radius), I found one site that said its always((axis of rotation - outer radius)...