Ch4.2 Congruent Triangles
- 1. Ch4.2_CongruentTriangles.notebook October 24, 2011 Chapter 4.2 Congruent Triangles 1
- 2. Ch4.2_CongruentTriangles.notebook October 24, 2011 Congruent means same measure (or size and shape) ≅ Congruent triangles have congruent angles and congruent sides B X Y Z A C 2
- 3. Ch4.2_CongruentTriangles.notebook October 24, 2011 Types of Triangle Congruences The SSS Postulate (sidesideside) 2 triangles are congruent if: 3 sides of one triangle are equal to the 3 sides of the other triangle 3
- 4. Ch4.2_CongruentTriangles.notebook October 24, 2011 Types of Triangle Congruences The SAS Postulate (sideangleside) 2 triangles are congruent if: 2 sides and their included angle of one triangle are equal to 2 sides and their included angle of the other triangle Included angle 4
- 5. Ch4.2_CongruentTriangles.notebook October 24, 2011 Types of Triangle Congruences The ASA Postulate (anglesideangle) 2 triangles are congruent if: 2 angles and their included side of one triangle are equal to 2 angles and their included side of the other triangle Included side 5
- 6. Ch4.2_CongruentTriangles.notebook October 24, 2011 Are the following triangles congruent? If so, by what congruence postulate? 6
- 7. Ch4.2_CongruentTriangles.notebook October 24, 2011 Which Postulate? 7
- 8. Ch4.2_CongruentTriangles.notebook October 24, 2011 Prove: ΔVWX ≅ ΔZXY Statement Reason Definition of perpendicular lines 8
- 9. Ch4.2_CongruentTriangles.notebook October 24, 2011 Given: RQ = RS R RT bisects <QRS Prove: ΔQRT = ΔSRT T Q S Statement Reason 9
- 10. Ch4.2_CongruentTriangles.notebook October 24, 2011 Page 156 # 17 10