## Reflection: Coherence From Perpendiculars to Parallels - Section 3: Summarizing Properties of Perpendiculars

Defining Right Angles in a New Way
From Perpendiculars to Parallels

# From Perpendiculars to Parallels

Unit 3: Congruence and Rigid Motions
Lesson 7 of 17

## Big Idea: Students consolidate and extend their knowledge of constructions related to bisectors: "A perpendicular to a perpendicular is a parallel."

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59 minutes

### Tom Chandler

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