Pentagonal symmetry

H2, also known as peggic symmetry or pentagonal symmetry, is a 2D spherical Coxeter group. It is the symmetry group of the pentagon, with 5 rotation and 5 reflection elements.

Subgroups

 * H2+ (maximal)
 * A1×I (maximal)
 * I×I

Convex polytopes with H2 symmetry

 * Pentagon (regular)
 * Dipentagon (isogonal)/Pentambus (isotopic)