1. 7.4 Showing Triangles are Similar: SSS and SAS
Goal: Show that two triangles are similar using the SSS and SAS Similarity Postulates.

2. Theorem 7.2 Side-Side-Side Similarity Theorem (SSS)
If the corresponding sides of two triangles are proportional, then the triangles are similar. A C F H G B

3. 1. Use the SSS Similarity Theorem

4. 2. Use the SSS Similarity Theorem

5. Use the SSS Similarity Theorem

6. Theorem 7.3 Side-Angle-Side Similarity Theorem (SAS)
If an angle of one triangle is congruent to an angle of a second triangle and the lengths of the sides that include these angles are proportional, then the triangles are similar. X Y M N P Z

7. 3. Use the SAS Similarity Theorem

8. 4. Similarity in Overlapping Triangles

9. Use the SAS Similarity TheoremNO
Yes

10. Homework
7.4 pg. 382
5-25 Odd