Answer:
56
Step-by-step explanation:
To find the surface area, we need to find the area of all of the faces of this triangular prism. First, we figure out the area of a triangle which can be found by multiplying 1/2 x base x height ( 1/2 x 4 x 5 ) = 10. Since there are 4 faces that are triangles, we are going to multiply 10 x 4 = 40. Then, we find the area of the bottom which is a square and can be found by multiplying length x width (4 x 4) = 16. Finally, we add 40 + 16 = 56.
