In terms of tensile strength it's the hexagon, as used in the construction of carbon nanotubes.
An ancient pyramid is any of a number of monumental structures built by ancient civilizations in the shape of a pyramid with a rectangular base.
The strongest geometric shape is probably the triangular prism.
I think the strongest 3D shape is a cylinder.
A sphere.
They are triangular structures
ancient structures were built by man not screws
mote and beiley
Triangles are considered the most stable shape for structures because they distribute weight and forces evenly. The triangular shape is the strongest geometric shape because it has the smallest possibility of warping or collapsing under stress. That's why many buildings and bridges are designed with triangular supports.
Triangulation is a technique or a method that uses the shape of a triangle on structures that require a lot of strength to serve its purpose, this is why it is popular for building structures from large to small, permanent to temporary. A triangular form is one of the strongest shapes known to man, triangulation of material adds strength by reducing lateral movement.
An inverted U shape is the most common tunnel shape as this is the strongest.
Colonists built structures.
Triangle. Its the strongest geometric shape