Reflectional Symmetry


An image has Reflectional Symmetry if there is at least one line which splits the image in half so that one side is the mirror image of the other. Reflectional symmetry is also called line symmetry or mirror symmetry because there is a line in the figure where a mirror could be placed, and the figure would look the same.

Think of a figure on a piece of paper, then folding the paper in two so that the two halfs match up, or actually placing a mirror on the line of symmetry.



It is possible to have more than one line of reflectional symmetry.



What letters have reflectional symmetry? Do any letters have more than one line of symmetry?

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On this page you will investigate reflectional symmetry. As you investigate, be sure to write down your observations.

Click on the image below to investigate reflectional symmetry.

After you are done, close the sketch without saving your changes!


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