11. [-/0.66 Points] DETAILS SCALCET8 6.2.063. Consider the following. -aR- ebr (a) Set up an integral for the volume a solid torus (the donut-shaped solid shown in the figure) with radii br and aR. (Let a = 8 and b = 5.) dy (b) By interpreting the integral as an area, find the volume V of the torus. V = Need Help? Watch It 12. [-/0.66 Points] DETAILS SCALCET8 6.3.004. Use the method of cylindrical shells to find the volume generated by rotating the region bounded by the given curves about the y-axis. y = x', y =0, x= 1, x = 2