Answer:
384 cm^2
Explanation:
Start with the prism (I multiply by 2 because some of the surfaces are more of):
- 4×15×2=120
- 6×15×2=180
- 6×4=24
The Triangular Prism (I divide by 2 because it is a triangle shape on the sides):
The Last Step (adding everything):
120+180+24+12+18+30=384