Decagonal symmetry

Decagonal symmetry, also known as deggic symmetry and notated as I2(10), is a 2D spherical Coxeter group. It is the symmetry group of the decagon, with 10 rotation and 10 reflection elements.

Subgroups

 * Chiral decagonal symmetry (maximal)
 * Pentagonal symmetry (maximal)
 * Chiral pentagonal symmetry
 * Rectangular symmetry (maximal)
 * Inversion symmetry
 * Reflection symmetry
 * Identity symmetry

Convex polytopes with I2(10) symmetry

 * Decagon (regular)
 * Didecagon (isogonal)/Decambus (isotopic)