Hello guys !

I'd like to know the general method of doing when dealing with such texts :

"find the area bounded by y=..... and y=......"

or "find the volume of the area with a revolution around "...." axis"

In fact, it'd be nice if you could give me examples of texts and their solving generalization, pleaaaaase (Itwasntme)

I hope I'm not asking a too vague thing... :)

Thanks ^^