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12.7: Chapter 12 Review

Difficulty Level: At Grade Created by: CK-12
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Keywords & Theorems

Exploring Symmetry

  • Line of Symmetry
  • Line Symmetry
  • Rotational Symmetry
  • Center of Rotation
  • Angle of Rotation


  • Transformation
  • Rigid Transformation
  • Translation


  • Reflection
  • Line of Reflection
  • Reflection over the axis
  • Reflection over the axis
  • Reflection over
  • Reflection over


  • 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.

  1. Reflection over the axis - A.
  2. Reflection over the axis - B.
  3. Reflection over - C.
  4. Reflection over - D.
  5. Rotation of - E.
  6. Rotation of - F.
  7. Rotation of - G.
  8. 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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