Monogonal dihedral symmetry (D1) is the two-dimensional symmetry group of the monogon, with the abstract group Z2. It has two elements; the identity, and a single reflection along the monogon's single line of symmetry.
Its symbol is o.
Monogonal dihedral symmetry (D1) is the two-dimensional symmetry group of the monogon, with the abstract group Z2. It has two elements; the identity, and a single reflection along the monogon's single line of symmetry.
Its symbol is o.