Answer:

Explanation:
To begin answering this question you must first know that volume is often found by b*h*l
The first part we will look at is the rectangle
The sides are 6ft and 10ft with a height of 6.5. So to find the volume of this sect we multiply all 3 together which is 360
Since the two triangles at the end have the same width, I will treat it as a cube. The dimensions of this cube is 4ft by 3ft (6ft/2) multiply it by 6.5 to get 78
Finally we must add 360 and 78 to get the complete answer which is 438 ft cubed