# Math Help - volume tricky problems

1. <a href="http://s80.photobucket.com/albums/j171/sykohawk/?action=view&current=calchelp.jpg" target="_blank"><img src="http://i80.photobucket.com/albums/j171/sykohawk/calchelp.jpg" border="0" alt="Photobucket"></a>

i need helping figuring out the work behind this to get the required answer. the correct answer is given. ive been at these problems for a couple hours now. plz help

2. Originally Posted by ahawk1
<a href="http://s80.photobucket.com/albums/j171/sykohawk/?action=view&current=calchelp.jpg" target="_blank"><img src="http://i80.photobucket.com/albums/j171/sykohawk/calchelp.jpg" border="0" alt="Photobucket"></a>

i need helping figuring out the work behind this to get the required answer. the correct answer is given. ive been at these problems for a couple hours now. plz help
I'd do it by translating the curve (and therefore the region) 1 unit to the left and then rotating around the y-axis .....