6 A store sells two types of tiny crystals. One of the crystals is a triangular prism whose dimensions are shown at the right. The other crystal is shaped like a rectangular prism with a length of 26 millimeters, a width of 8.5 millimeters, and a height of 7 millimeters. Alice says that the volume of the rectangular crystal is greater than two times the volume of the triangular crystal. Find the volumes to prove whether or not Alice is correct. Show your work.​