Volume 4. Use cross sectional disks to find the volume of the solid obtained by revolving the region bound between x =2, y = 1, and y = 2 " around the line y = 0. The bound region is shown below as a starting point. Y & H. Take a ball of radius R, then bore a cylindrical hole of radius through the central axis of the ball. The result is a ball with a hole through it. Use cross sectional disks to find the volume of the obtained solid. P = L | | | | L b Beaae, | | ~ b ) | I | | = 1 1 = I I | | L | | et } { R 6. Use cylindrical shells to find the volume of the solid obtained by revolving the region bound between y = x + 3 and y = 3 + 2 2% around the line z = 0. 7. Use cylindrical shells to find the volume of the solid obtained by revolving the region bound between y = 2% and z = y? around the line y = 1