Hexagon has no degrees of freedom but can seen as directed edges. Hexagons of symmetry g2, i4, and r12, as parallelogons can tessellate the Euclidean plane by translation. Other hexagon shapes can tile the plane with different orientations. The 6 roots of the simple Lie group , represented by a Dynkin diagram , are in a regular hexagonal pattern. The two simple roots have a 120° angle between them. The 12 roots of the Exceptional Lie group G2, represented by a Dynkin diagram are also in a hexagonal pattern. The two simple roots of two lengths have a 150° angle between
Hexagon (comedy show) selected each year. Recent recipients have included Sarah's Circle, the ALS Association, Hospice Caring, and the Wounded Warrior Project. Hexagon is supported by the affiliated Friends of Hexagon. As of 2014, Hexagon had raised over $3.5 million for charity. Hexagon has received recognition for its work in the Washington community. In 1987, President Ronald Reagan presented Hexagon with the President's Volunteer Action Award for service. In 1993, "Washingtonian" magazine selected Hexagon as "Washingtonian of the Year," the first time an organization was named as the award's recipient. In 1994, the Greater Washington Area Chapter of Hadassah honored Hexagon with its