## Triangle Proportionality Theorem and Converse - Section 1: Preparing for Proof

Triangle Proportionality Theorem and Converse

# Proving Theorems involving Similar Triangles

Unit 6: Similarity
Lesson 5 of 8

## Big Idea: 9 steps for one and 3/4 of a dozen for the other. In this lesson students will learn to write two 9-step proofs that involve similar triangles.

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Standards:
Subject(s):
Math, similar triangles, Triangle proportionality theorem
75 minutes

### Anthony Carruthers

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