Transformations: Translations and Reflections

Lines of Symmetry

Lines can be drawn through some geometric figures such that one side of the figure is a reflection of the other side of the figure.  This line is called a line of symmetry.


Take a look at the line of symmetry drawn in the following figures.

Lines of symmetry drawn in a triangle and a heart
Lines of Symmetry

 

In many figures, there is more than one line of symmetry.

 Lines of symmetry drawn in a pentagon and a two sided arrow
Lines of Symmetry