What is the volume of the composite figure? A rectangular prism is positioned vertically; at the top it joins another rectangular prism at a ninety degree angle. This prism extends horizontally to the right. At the far right side, this rectangular prism joins another rectangular prism at a ninety degree angle. This last section extends vertically upward. The first section sits on its square base with sides measuring 4 yards. Along the left side, the height of this section is labeled 8 yards. On the next, horizontal section, the bottom side is labeled twelve yards. The width of that section, w