Answer:
Surface area?
4 x 3.5 x 1/2 (basically just dividing by 2) = 7
11.1 x 4 x 1/2(basically just dividing by 2) = 22.2, 22.2 x 3(three triangles on the sides) = 66.6
Now let's add all the given areas:
7 + 66.6 = 73.6 m^2 is your answer.
