Triangles congruent by ASA and AAS proofs
- Intro Lesson: a5:27
- Lesson: 1a3:03
- Lesson: 1b2:16
- Lesson: 1c2:33
- Lesson: 2a5:14
- Lesson: 2b1:51
Triangles congruent by ASA and AAS proofs
Lessons
- Introductiona)
- Similar tirangles VS. Congruent triangles
- Ways to prove congruency:
- SSS
- SAS
- ASA
- AAS
- 1.What is the third congruence that is needed to prove that △ABC≅△DEF using the given postulate or theorem?
a)AB≅DE and ∠C≅∠F
Prove by AAS.b)AC≅DF and ∠A≅∠D
Prove by ASA.c)∠A≅∠D and ∠B≅∠E
Prove by AAS. - 2.Decide if the following triangles are congruent. Show your reasoning.a)△ABC, △CBD
b)△XYZ, △XWZ
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5.
Triangles and special triangles
5.1
Pythagorean theorem
5.2
Solving expressions using 45-45-90 special right triangles
5.3
Solving expressions using 30-60-90 special right triangles
5.4
Classifying triangles
5.5
Congruence and congruent triangles
5.6
Triangles congruent by SSS proofs
5.7
Triangles congruent by SAS and HL proofs
5.8
Triangles congruent by ASA and AAS proofs
5.9
Isosceles and equilateral triangles