👉 A tetrahexahedron is a six-faced polyhedron in three dimensions, named for its shape resembling a hexagon. It has 12 edges, and each edge is composed of 3 segments joined at their ends to form a triangle. In geometry, the tetrahexahedron is often used as a model for the structure of atoms or molecules, because it can be considered a tetrahedron with additional faces that are hexagonal. It has many practical applications
