What is the answer??

Answer:
200 cm²
Step-by-step explanation:
→ Work out the area of the 2 triangles
0.5 × 15 × 8 × 2 = 120 cm²
→ Work out the area of the bottom
15 × 2 = 30
→ Work out the area of the back
8 × 2 = 16
→ Work out the area of the top
17 × 2 = 34
→ Add all together
120 + 30 + 16 + 34 = 200 cm²