SYMMETRY

It is a quality of somo shapes which some of their parts are reflection of others.
·Reflect action symmetry:It is a shapes quality which is formed by two halves facing each other with an axis or fold line in between as if both sides where a mirrror images of each other.
·Symmetry axis:It is a line which divides a shape into two symmetry halwes .Symetry points are on a perpendicular line to it.
·Central symmetry: It is the reflect action of an object through a point called the symmetry center.Symmetry pair of. Points are colindar with the center.