# 9.20: Lines of Symmetry

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**Practice**Lines of Symmetry

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Term | Definition |
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Bilateral Symmetry |
This occurs when a figure can only be divided into equal halves on one line. Such a figure has one line of symmetry. |

Line Symmetry |
A figure has line symmetry or reflection symmetry when it can be divided into equal halves that match. |

Lines of Symmetry |
Lines of symmetry are the lines that can be drawn to divide a figure into equal halves. |

Reflection |
A reflection is a transformation that flips a figure on the coordinate plane across a given line without changing the shape or size of the figure. |

Rotational Symmetry |
A figure has rotational symmetry if it can be rotated less than around its center point and look exactly the same as it did before the rotation. |

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Description

Identify line, bilateral, and rotational symmetry.

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Date Created:

Oct 29, 2012
Last Modified:

Aug 16, 2016
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