Answer:
3,380 ft²
Step-by-step explanation:
We will look at this as the rectangular prism, and the triangular prism
The surface of the rectangular prism...
The front and back are rectangles with dimensions of 20x36, there are 2 rectangles, so the area is...
2(20x36) = 2(720) = 1.440
The top and bottom of the are rectangles with dimensions of 10x36, there are 2 rectangles, so the area is...
2(10x36) = 2(360) = 720
The left side is a rectangle with dimension of 10x20, so the area is 10(20) = 200
The triangular prism...
the front and back are triangles with a height of 20 and a base of 24, there are 2 triangles, so the area is...
2[(1/2)(20x24)] = 2[(1/2)(480)] = 480
The bottom is a rectangle with dimensions of 24x10, the area is 240
The top of the triangle is a rectangle with dimensions of 10x30, the are is 300
Putting them all together gives us..
1,440 + 720 + 200 + 480 + 240 + 300 = 3,380 ft²
