Chiral decagonal symmetry

Chiral decagonal symmetry, also known as kideggic symmetry and notated I2(10)+, is a 2D spherical symmetry group. It is the symmetry group of the decagon with rotational symmetry but no reflections.

Subgroups

 * Chiral pentagonal symmetry (maximal)
 * Inversion symmetry (maximal)
 * Identity symmetry

Convex polytopes with G2+ symmetry

 * Decagon (regular)