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

 * H2+ (maximal)
 * K2+ (maximal)
 * I×I

Convex polytopes with G2+ symmetry

 * Decagon (regular)