A store manager set up a cardboard display to advertise a new brand of perfume. The display is a square pyramid whose base is 18 inches on each side. The height of each triangular face of the pyramid is 12 inches. How much cardboard was used to make the display?

Answer 1

the base is 18*18
each side is a triangle of base 18 and height 12, so the faces have area

4*(18*12/2)

SO, just do the math.

Answer 2

You are wrong~!~~~~

4(18squared X 12 divided by 2)

Answer 3

A store manager set up a cardboard display to advertise a new brand of perfume. The display is a square pyramid whose base is 18 inches on each side. The height of each triangular face of the pyramid is 12 inches. How much cardboard was used to make the display?