Rectangular pyramidal symmetry

Rectangular pyramidal symmetry, also known as rectpyric symmetry or digonal pyramidal symmetry and notated as K2×I, is a 3D spherical symmetry group. It is the symmetry group of the rectangular pyramid, and corresponds to 2D rectangular symmetry with no additional elements. It is the digonal member of the family of pyramidal symmetries.

Subgroups

 * K2+×I (maximal)
 * A1×I×I (maximal)
 * I×I×I