Which figure has a greater volume and by how much?

2 figures. One figure has a rectangular prism with length 15 centimeters, width of 6 centimeters, and height of 5 centimeters. A triangular prism has a triangular base with base of 15 centimeters and height of 3 centimeters. The height of the prism is 6 centimeters. The second figure has a rectangular prism with a length of 15 centimeters, width of 6 centimeters, and height of 5 centimeters. A rectangular prism has a base of 15 centimeters by 6 centimeters and a height of 3 centimeters.
The volume of figure 1 is 45 centimeters cubed greater than the volume of figure 2.
The volume of figure 2 is 45 centimeters cubed greater than the volume of figure 1.
The volume of figure 1 is 120 centimeters cubed greater than the volume of figure 2.
The volume of figure 2 is 120 centimeters cubed greater than the volume of figure 1.