If I cut a square diagonally into two triangles is it stronger than the square... no...
Me thinks the architect is from the P T Barnum school of salesmanship.
If I cut a square diagonally into two triangles is it stronger than the square... no...
Many variables come into play...
That said.
The good old triangle, the ONLY stable polygon. Nudge a rectangle a bit and it becomes a parallelogram.
Four equal lengths of Kryptonite square, one bolt at each corner; zero stability.
Use three for a nice equilateral triangle, near bomb proof.