# Math Help - Volume

1. ## Volume

I cant seem to get the same answer as the back of the book and waswondering ifsomeone could work it out so I see where i m going wrong.

Find the volume generated by y=x^(1/2) rotated about y=2 between the origin and x=1.

2. Originally Posted by AnnaBee123
I cant seem to get the same answer as the back of the book and waswondering ifsomeone could work it out so I see where i m going wrong.

Find the volume generated by y=x^(1/2) rotated about y=2 between the origin and x=1.
First draw a graph

So the radius(distance between the graphs are)

$\pi \int_{0}^{1}(2-\sqrt{x})^2dx$

Can you finish from here