Triangles congruent by SSS proofs
- Intro Lesson: a5:27
- Lesson: 13:05
- Lesson: 2a4:49
- Lesson: 2b4:20
- Lesson: 2c3:39
Triangles congruent by SSS proofs
Lessons
- Introductiona)
- Similar tirangles VS. Congruent triangles
- Ways to prove congruency:
- SSS
- SAS
- ASA
- AAS
- 1.Explain why △ABD ≅ △CDB.
- 2.Decide and explain if △LMP ≅△XYZ using the following coordinates.a)L(1, 1), M(3, 4), P(5, 1), X(-5, -4), Y(-3, -1), Z(-1, -4)b)L(2, -2), M(6, -1), P(2, 6), X(-2, -2), Y(2, -1), Z(0, -5)c)L(1, -1), M(-1, 4), P(5, 4), X(2, 6), Y(5, 12), Z(5,6)
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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