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Math 9 Lesson #52 – Geometric Transformations Mrs. Goodman

Math 9 Lesson #52 – Geometric Transformations Mrs. Goodman. Reflection. Pre-image Image. Rotation. Pre-image Image. Translation. Pre-image Image. Dilation. Pre-image Image. Isometry.

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Math 9 Lesson #52 – Geometric Transformations Mrs. Goodman

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  1. Math 9 Lesson #52 – Geometric Transformations Mrs. Goodman

  2. Reflection • Pre-image Image

  3. Rotation • Pre-image Image

  4. Translation • Pre-image Image

  5. Dilation • Pre-image Image

  6. Isometry • A transformation that preserves length, angle measure, parallel lines and distance between points.

  7. Line Symmetry • Mapping a figure onto itself by a reflection over a line

  8. How many lines of symmetry?

  9. How many lines of symmetry?

  10. Rotational Symmetry • Mapping a figure onto itself by a rotation of 180 degrees or less around its center

  11. Rotational Symmetry?

  12. Rotational Symmetry?

  13. That’s all for today! • Thanks for working hard! • See you next time!

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