Congruency, Similarity, and Transformations By: Emily Angleberger.

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Presentation transcript:

Congruency, Similarity, and Transformations By: Emily Angleberger

Congruent Objects are congruent if they are exactly the same shape and size.

Are these shapes congruent?

Similar Similar objects are the same shape but are not the same size.

Are these shapes similar?

Corresponding Parts Matching parts of congruent or similar figures.

What parts are corresponding? AB CD EF GH A B C X Y Z

Transformations A change in position of a figure.  Translation  Reflection  Rotation Let’s see these transformations in action!

Translation (Slide) A figure moves along a straight line. Figure 1 Figure 2

Reflection (Flip) A mirror image is created across a line. Figure 1Figure 2 Figure 1Figure 2

Rotation (Turn) A figure turns around a point. Figure 1 Figure 2 90° 180° 90° Figure 2 180° Figure 2

Name the Transformation Translation Rotation Reflection 180° 90°