Question

I need to find the surface area of this

Answer 1

We need to find surface area, so we can imagine breaking it up into face net.

There will be 18 × 18 square base, four 18 × 40 rectangles, and four triangles with base 18 and height 13. 

So the surface area would be sum of these areas.

That would be 18×18 + 4( 18 × 40 ) + 4( (1/2) 18×13 ) = 3672

Final answer: 3672 m²

Hope this helps.

Answer 2

The surfaces area for the rectangular prism is 3528 meters squared, the surface area of the rectangular pyramid is 144 meters squared. add these together to get 3,672 meters squared