1. There are 4 triangles in a hexagon (try it on paper). A triangle's angles add up to 180.
180*4 = 720.
2. 720/6 angles = 120 (which answers question 3). Every angle has an exterior angle that adds to a straight line which is 180. 180-120 = 60. (This answers question 4) 60*6 angles = 360.
