1. Warm-Up Solve each proportion. 1) 2)
1) 2)
Hint: Use the distributive property when you cross multiply.

2. Triangle Similarity AA, SSS, SAS
Geometry 7-3
Triangle Similarity
AA, SSS, SAS

3. First Similarity Theorem: AA

4. Examples
Show why each pair of triangles are similar. W V X Y Z

5. Second Similarity Theorem: SSS

6. Example
Show that the triangles are similar.

7. Third Similarity Theorem: SAS

8. Examples
Show that the triangles are similar.

9. Final Example
Show that the triangles are similar, then find the value of x.