1. Proving Triangle Similarity by SSS and SAS
Section 8.3

2. What You Will Learn Use the Side-Side-Side Similarity Theorem.
Use the Side-Angle-Side Similarity Theorem.
Prove slope criteria using similar triangles.

3. Using the Side-Side-Side Similarity Theorem (Take Note)

4. Using the SSS Similarity Theorem
Is either △DEF or △GHJ similar to △ABC?

5. Using the SSS Similarity Theorem
Find the value of x that makes △ABC ∼ △DEF

6. You Try

7. Using the Side-Angle-Side Similarity Theorem (Take Note)

8. Using the SAS Similarity Theorem

9. You Try