SYMMETRY: It´s quality of shapes which some of their parts are reflections of others.
REFLECTION SYMMETRY: It is a shapes quality which it is formed by two halves facing each other with an axis or fold line in between as il both sides were mirror images of each other.
SYMMETRY AXIS: It is line which divides a shapes into two symmetric halves. Every element of the shape is reflected on the other side and at the same distance from the axis. Symmetry point are on perpendicular line to it.
CENTRAL SYMMETRY: It is the refection of an objet throught a point called the symmetry center. Evry symmetry point is on the other side and at same distance from the center of symmetry. Symmetry pairs of points are collinear whith the centre.
GEOMETRIC SYMMETRY: It is a kind of symmetry which follows accuarately the geometric symmetry rules.
APPARENT SYMMETRY: It is obvious symmetry but not every point or element follows accuarately the geometric symmetry rules. It happens very frequently in nature.
SYMMETRICAL BALANCE: It is away to organize parts of on image, picture or drawing so 1 side duplicates or mirrors the other.