Unit 2 Exam Part A Review 10-17-2018 9-22-2014.

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Presentation transcript:

Unit 2 Exam Part A Review 10-17-2018 9-22-2014

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

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

5.1 What Makes Triangles Congruent?

5.2 ASA Triangle Congruence

5.2 ASA Triangle Congruence

5.3 SAS Triangle Congruence

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

5.4 SSS Triangle Congruence

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

Warm-up, 10/18 Complete the proof.

6.2 AAS Triangle Congruence

6.3 HL Triangle Congruence

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

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! 