What is the surface area of the triangular prism?
A. 370 cm2
B. 390 cm2
C. 490 cm2
D. 520 cm2

Answer: A. 370 cm2
Step by Step explanation:
10x15=150 The big rectangle
15x6=90x2=180 The small rectangles
20x2=40 the triangles
Add all up 150+180+40=370
Hope this helped