Which figure has a greater volume, and how much greater is it? 2 figures. One figure has a rectangular prism with length of 36 feet, width of 21 feet, and height of 18 feet. The rectangular pyramid has a base of 36 feet by 21 feet, and height of 9 feet. The other figure has a rectangular prism with length of 36 feet, width of 21 feet, and height of 18 feet. A triangular prism has a triangular base with base of 36 feet and height of 9 feet. The prism has a height of 21 feet. The volume of figure 1 is 972 feet cubed greater than the volume of figure 2. The volume of figure 2 is 972 feet cubed greater than the volume of figure 1. The volume of figure 1 is 1,134 feet cubed greater than the volume of figure 2. The volume of figure 2 is 1,134 feet cubed greater than the volume of figure 1.