Answer:
2 triangles + 3 different rectangles = total surface of the triangular prism
Step-by-Step:
Honestly, the best way I can help you is to give you a proper way but you must know how to find each area on each shape of the triangular prism.
First, Calculate each Triangle by its area.
1/2 times base times height = surface area of triangle
Then, Calculate each Rectangle by its area.
base times height = surface area of rectangle
Once you have each area of the shape of the prism, you add all of them to get the total surface area.
2 triangles + 3 different rectangles = total surface of the triangular prism