Main Properties

• A square is a parallelogram: it has 4 sides where opposite sides are parallel to each other.
• It has 2 diagonals.
• Its diagonals divide the square into 4 equal triangles.
• Its diagonals are the same length.
• The point where the diagonals cross is called the center of symmetry of the square.
• Any line parallel to any side that passes through the center of symmetry divides the square into 2 equal halves.