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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!