Lines of symmetry are straight lines that divide a shape into two equal parts, where one part is an exact reflection or mirror image of the other. In geometry, many 2D shapes have line symmetry. For example, Line symmetry can be seen in nature. For example, Line symmetry can be seen in art.

A line of symmetry is the line that divides a shape or an object into two equal and symmetrical parts. We also call this line the axis of symmetry or mirror line because it divides the figure symmetrically, and the divided parts look like mirror reflections of each other.

A line of symmetry splits a shape in half so that both halves are identical. There are three different lines of symmetry: vertical lines of symmetry, horizontal lines of symmetry, and diagonal lines of symmetry. Most shapes have lines of symmetry but not all do.

Lines of symmetry are straight lines that divide a shape into two equal parts where one part is an exact reflection of the other. E.g. A rectangle has two lines of symmetry (LoS) shown below using a dashed line.

A line of symmetry is a line that cuts a shape exactly in half. In symmetrical shapes, like a regular polygon, this means that if you were to fold the shape along the line of symmetry, both halves would match exactly and be mirror images of each other.