Answer:
142.4 in^2
Step-by-step explanation:
Base: 4 × 4 = 16
Four faces: 12 × 4 = 24 (×4 = 96)
Top faces: 2.8 × 4 = 11.2 (×2 = 22.4)
Triangular faces: 2 × 4 = 8
Add: 16 + 96 + 22.4 + 8 = 142.4