# 12.1: Reflection Symmetry

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**Practice**Reflection Symmetry

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Congruent

Congruent

Congruent figures are identical in size, shape and measure.Isosceles Triangle

Isosceles Triangle

An isosceles triangle is a triangle in which exactly two sides are the same length.Line of Symmetry

Line of Symmetry

A line of symmetry is a line that can be drawn to divide a figure into equal halves.Line Symmetry

Line Symmetry

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

reflection symmetry

A figure has reflection symmetry if it can be reflected across a line and look exactly the same as it did before the reflection.Symmetry

Symmetry

A figure has symmetry if it can be transformed and still look the same.### Image Attributions

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Description

This concept teaches students how to determine whether or not a shape has reflection symmetry and how to draw lines of symmetry.

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Date Created:

Jul 17, 2012
Last Modified:

Feb 26, 2015
Vocabulary

Congruent

Congruent

Congruent figures are identical in size, shape and measure.Isosceles Triangle

Isosceles Triangle

An isosceles triangle is a triangle in which exactly two sides are the same length.Line of Symmetry

Line of Symmetry

A line of symmetry is a line that can be drawn to divide a figure into equal halves.Line Symmetry

Line Symmetry

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

reflection symmetry

A figure has reflection symmetry if it can be reflected across a line and look exactly the same as it did before the reflection.Symmetry

Symmetry

A figure has symmetry if it can be transformed and still look the same.
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