I'm going to split it into Two shapes a triangle and a rectangle. First we'll do the rectangle. You do V=bwh, you plug in the numbers. V=(6)(10)(2) the volume of the rectangle would be 420. Then do the Triangle portion. V=1/2(bwh). to get the base you would do 5-2=3 and then multiply the base the height and the width by each other. To get (3)(10)(6)=180. Then you divide it by 2 to get 90. Finally you add it all together to get 510 feet squared as your final answer.
