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Course: Geometry (OPS pilot) > Unit 4
Lesson 5: Isosceles and equilateral triangles- Properties of congruence and equality
- Angles in a triangle sum to 180° proof
- Proofs concerning isosceles triangles
- Proofs concerning equilateral triangles
- Triangle exterior angle example
- Prove triangle properties
- Corresponding angles in congruent triangles
- Find angles in congruent triangles
- Isosceles & equilateral triangles problems
- Find angles in isosceles triangles
- Finding angles in isosceles triangles
- Finding angles in isosceles triangles (example 2)
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