# The Triangle Sum Setup

Unit 5: Congruence and Similarity
Lesson 14 of 16

## Big Idea: Before using and applying the Triangle Sum Property, students verify it through a hands -on activity and by providing a proof.

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Standards:
Subject(s):
Math, Geometry, Triangles, Similarity and Congruence, Supplementary Angles, Triangle sum property, straight angles
60 minutes

### Mauricio Beltre

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