Answer:
[tex]672 \:cm^2[/tex]
Step-by-step explanation:
Find the area of the 2 triangle faces and the 3 rectangle faces, then add the areas together to get the total surface area of the triangular prism.
[tex](16 \times 12 \times 1/2) \times 2 + (12 \times 10) + (16 \times 10) + (10 \times 20)[/tex]
[tex]=672[/tex]
