What is the strongest geometric shape?

Answer 1

The triangle is the strongest geometric shape, as it holds its shape and has a base which is very strong. The triangle is common in all sorts of building supports and trusses.

If all three sides of a triangle are made of rigid material, the angles are fixed and cannot get larger or smaller without breaking at the joints, unlike a rectangle, for example, which can turn into a parallelogram and even collapse totally. If you take a rectangle and place one diagonal piece from corner to corner, you can make that strong and stable, too, but doing that makes two triangles.

Answer 2

It depends on the circumstances. If you want rigidity, triangles are the best, and the octet-truss is the strongest structure in this circumstance because of the rigidity of triangles. However if its resistance to compression you want its a tessellation of hexagons, and a lorimerlite framework is the strongest truss in this circumstance. Also a sphere is the strongest stand alone shape in circumstances of uniform compression in all directions, hence the use of domed submarine windows and space sut helmets.