Deltahedron
A deltahedron is a polyhedron composed exclusively of equilateral triangular faces, with each face sharing an edge with every other face. The name derives from the Greek word *delta*, referring to the triangular shape, and *hedron*, meaning "face" in polyhedral terminology. Deltahedra are notable for their geometric symmetry and efficiency in space-filling properties.
Deltahedra can be categorized based on the number of faces they possess, ranging from the simplest tetrahedron
Deltahedra are significant in various fields, including crystallography, where they model certain crystal structures, and in