Answer:
978.4 in²
Step-by-step explanation:
2 triangles:
2(½ × 8 × 4)
= 32 in²
2 slant rectangles on top
2(5.66 × 20)
= 226.4 in²
5 rectangles in the lower section:
2(10 × 8) + 2(10 × 20) + (8 × 20)
= 720
Total area:
32 + 226.4 + 720
= 978.4 in²
