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Question 23 5 pts A solid of revolution is generated when a plane area is revolved about a line on its plane. To determine the volume of the solid generated, a differential area dA is drawn. If dA is parallel to the axis of revolution, the method of_ is used. O Rings O Washer O Cylindrical Shell Disk Question 24 5 pts What is the area bounded by the curves y = x2 - 2x + 4 and y = -x2 - 4x - 7 between x = 2 and x = 4? 191/5 sq units 173/3 sq units 214/3 sq units 145/2 sq units Question 25 5 pts A solid of revolution is generated when a plane area is revolved about a line on its plane. To determine the volume of the solid generated, a differential area dA is drawn. If dA is parallel to the axis of revolution, the method of is used. Rings Disks Cylindrical Shell Washers