9-4 COMPOSITIONS OF ISOMETRIES. Isometries Isometry: transformation that preserves distance, or length. Translations, reflections, and rotations are isometries.

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Presentation transcript:

9-4 COMPOSITIONS OF ISOMETRIES

Isometries Isometry: transformation that preserves distance, or length. Translations, reflections, and rotations are isometries.

Theorem 9-2

Problem 1

Theorem 9-3

Problem 2

Glide Reflection A glide reflection is the composition of a translation (a glide) and a reflection across a line parallel to the direction of translation. Example:

Problem 3

Try with a Partner

TOO

Homework Pg. 574 # 6 – 15 all, 29 – 30 (just identify type of transformation) – done on a worksheet!