## Keywords & Theorems

**Exploring Symmetry**

- Line of Symmetry
- Line Symmetry
- Rotational Symmetry
- Center of Rotation
- Angle of Rotation

**Translations**

- Transformation
- Rigid Transformation
- Translation

**Reflections**

- Reflection
- Line of Reflection
- Reflection over the axis
- Reflection over the axis
- Reflection over
- Reflection over

**Rotations**

- Rotation
- Center of Rotation
- Angle of Rotation
- Rotation of
- Rotation of
- Rotation of

**Compositions of Transformations**

- Composition (of transformations)
- Glide Reflection
- Reflections over Parallel Lines Theorem
- Reflection over the Axes Theorem
- Reflection over Intersecting Lines Theorem

**Extension: Tessellating Polygons**

- Tessellation

## Review Questions

Match the description with its rule.

- Reflection over the axis - A.
- Reflection over the axis - B.
- Reflection over - C.
- Reflection over - D.
- Rotation of - E.
- Rotation of - F.
- Rotation of - G.
- Rotation of - H.

## Texas Instruments Resources

*In the CK-12 Texas Instruments Geometry FlexBook, there are graphing calculator activities designed to supplement the objectives for some of the lessons in this chapter. See http://www.ck12.org/flexr/chapter/9697.*

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## Date Created:

Feb 22, 2012## Last Modified:

Dec 13, 2013
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