Question

Use a two-dimensional representation of the prism, if necessary, to find the area of the entire surface of the prism.

Answer 1

The surface area of the prism is 72 square units.

Explanation:

In order to calculate the surface area of the prism we must calculate the area of each face of the prism. To better visualize it we can look at the picture below. We must calculate the area of every face in the picture, so we have:

surface area = 2*[(1/2)*3*4] + 3*5 + 4*5 + 5*5

surface area = 12 + 15 + 20 + 25

surface area = 72 square units