1. Homework Questions

2. Entry Task
Are these two polygons similar?

3. Similar Triangles
11.2 Notes

4. Triangle Congruency vs. Similarity?
What’s the same?
Corresponding angles are congruent
What’s different?
Corresponding sides are congruent in congruent triangles
Corresponding sides are proportional in similar triangles
How do we write it?

5. Triangle Congruency Shortcuts
AAS
SSS
SAS
ASA
If something shows triangle congruency, then it also shows similarity

6. What Triangle Congruence Shortcuts do not Work?
SSA/ASS
AAA
Will either work for Triangle Similarity?
Yes! AAA (really AA) works

7. Practice Problems
Are these two triangles similar?

8. Practice Problems
Are these two triangles similar?

9. Practice Problems
Are these two triangles similar?

10. Homework
Pg591 #1-6 (write the rule that allows you to say the triangles are similar) ,8-11,18