# 12.8: Study Guide

**At Grade**Created by: CK-12

Keywords: Define, write theorems, and/or draw a diagram for each word below.

** Section: Exploring Symmetry**

Line of Symmetry

Line Symmetry

Rotational Symmetry

Center of Rotation

Angle of Rotation

**Homework:**

** Section: Translations**

Transformation

Rigid Transformation

Translation

**Homework:**

** Section: Reflections**

Reflection

Line of Reflection

Reflection over the axis

Reflection over the axis

Reflections over a horizontal line

Reflections over a vertical line

Reflection over

Reflection over

**Homework:**

** Section: Rotations**

Rotation

Center of Rotation

Angle of Rotation

Rotation of

Rotation of

Rotation of

**Homework:**

** Section: Compositions of Transformations**

Composition (of transformations)

Glide Reflection

Reflections over Parallel Lines Theorem

Reflection over the Axes Theorem

Reflection over Intersecting Lines Theorem

**Homework:**

**Extension: Tessellating Polygons**

Tessellation

**Homework:**