Apyramid-shaped building is 340 ft tall and has a square base with sides of 567 ft. the sides of the building are made from reflective glass. what is the surface area of the reflective glass?

Check the picture below.

now, notice, the reflective glass part of the building, is just the triangular faces, it has four of those.

now, notice that each triangular face has a base of 567 and a height or altitude of 442.69.

so the surface area with the reflective glass will be, the area of those four triangles, get the area of each and add them up.