How many different lines of symmetry does a square have?

A square has four lines of symmetry.

To understand why, let’s consider the properties of a square:

• A square is a regular quadrilateral, meaning all four sides are equal and all four angles are equal to 90 degrees.
• The first two lines of symmetry can be drawn horizontally and vertically through the center of the square, dividing it into two equal halves.
• The other two lines of symmetry can be drawn diagonally from one corner of the square to the opposite corner. These lines also divide the square into two equal triangular sections.

Since all these lines perfectly divide the square into mirrored halves, it confirms that there are four lines of symmetry in a square.