1. Unit 2 Exam Part A Review 10-17-2018

2. Warm-up
Identify the sides or angles that need to be congruent in order to make the given triangles congruent by AAS.

3. 5.1 What Makes Triangles Congruent?
Write in your notes: “Two triangles are congruent if and only if (iff) their corresponding parts are congruent.”

4. 5.1 What Makes Triangles Congruent?

5. 5.2 ASA Triangle Congruence

6. 5.2 ASA Triangle Congruence

7. 5.3 SAS Triangle Congruence

8. 5.3 SAS Triangle Congruence PROOF
Statements
Reasons
𝐵𝐷 is the perpendicular
bisector of 𝐴𝐶
1. Given S
2. 𝐴𝐷 ≅ 𝐷𝐶
2. Def. Perpendicular Bisector A
3. ∠ADB ≅ ∠CDB
3. Right Angles Thm. (linear pair) S
4. 𝐵𝐷 ≅ 𝐵𝐷
4. Reflexive Property of ≅
5. △BDA ≅ △BDC
5. SAS

9. 5.4 SSS Triangle Congruence

10. 5.4 SSS Triangle Congruence
Given ΔABC ≅ ΔJKL, find the missing side length.

11. Warm-up, 10/18
Complete the proof.

12. 6.2 AAS Triangle Congruence

13. 6.3 HL Triangle Congruence

14. 6.3 HL Triangle Congruency
Show these two triangles are congruent by using the HL Triangle Congruency.

15. Now, please complete the Unit 2A Review.
Solutions are posted in class on the side boards, and will be posted on my webpage this afternoon.
Remember, use the rest of your half-sheet to include any problems from the review that you are struggling with, and bring the review tomorrow! 