Answer:
152 ft^2.
Step-by-step explanation:
The surface area is made up of 3 rectangles and 2 triangles
= 5 * 8 + 5 * 8 + 6 * 8 + 2 * 1/2 * 4 * 6
= 40 + 40 + 48 + 2*12
= 152.