A hexagon is a symmetrically shaped, two dimensional six sided polygon having identical angles on each plane . The hexagonal formula is often used in engineering, architecture, geometry, and board gaming as a simple but reliable structure. In many dice games, the six sides are equated to the roll of a dice, giving direction for movement in the game. The sum of the angles on a hexagon is 720 degrees, 6 x 120. 
Examples of Hexagon:
Allen keys and their matching sockets are hexagonal for better leverage. This shape also exists in natural forms: The six sided multiple lenses of the eyes of insectsIce crystals Beehive cells http://en.wikipedia.org/wiki/Hexagon http://www.comm.toronto.edu/~frank/hexagon/proof.html http://simple.wikipedia.org/wiki/Hexagon 
Hexagonal floor tesselations (in Rome). 
Regular hexagon. 
