hey, ive been working on this question for a while now; i just cant seem to get it.

A building is in the shape of a square prism with base edgemand heighthmetres. It stands on level ground. A base diagonal AC is extended to point K.

From K, a surveyor finds that the angles of elevation of F and G are 30 degrees and 45 degrees respectively. Find an exact value for the ratioh/m.

The top square base is read with vertices (left to right to bottom right to bottom left) H, G, F, E.

the bottom square is read with vertices ( left to right to bottom right to bottom left) D, C, B, A.