Data: Firm 2's structure is a pyramid with a square base.
To find the amount of material required to cover this structure (not including the floor) you find the surface area of the sides of a pyramid with a square base: 4 triangles with the same measures.
The area of a triangle is:
[tex]A=\frac{1}{2}b\cdot h[/tex]
Then, the area o the structure (not including the floor) is the sum of the area of each triangle. As there are 4 triangles the area is 4 times the area of a triangle:
[tex]A_P=4(\frac{1}{2}b\cdot h)[/tex]
