Below a cargo trailer is modeled by a rectangular prism and a triangular prism. The diagram on the right is of the floor, showing the inside measurements of the trailer. Inside the trailer, the rectangular prism measures 8 feet wide and 12 feet long. The walls that form the triangular prism each measure 6 feet wide inside the trailer. If the inside height of the trailer is 8.5 feet, what is the total volume of the inside of the trailer, to the nearest cubic foot? Show all of your work to find your solution. You must show all of your work for credit!