Line Symmetry

A Line of Symmetry is a line on a figure such that when the figure is folded along that line, both sides matches exactly. It is also known as a "Mirror Line" or "Axis of Symmetry".

The line of symmetry is usually drawn with a dotted line.

A figure has Line Symmetry if it has at least one line of symmetry.

Below are examples of figures with a line of symmetry.

The line of symmetry can be vertical, horizontal or diagonal (i.e. slanted at an angle) as shown in the diagram below.

Some figures do not have a line of symmetry, while some have one line of symmetry and others can have more than one line of symmetry (as shown in the diagrams below).

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