Presentation on theme: "How do we prove triangles congruent using Side-Side-Side Postulate?"— Presentation transcript:
1 How do we prove triangles congruent using Side-Side-Side Postulate? In each example, state a plan for proving the triangles are congruent.)))1)2)1. Reflexive Post.X1. Reflexive Post.2. A.S.A.2. S.A.S.)3)1. Supplements of congruent angles.((4)2. Reflexive Post.X1. S.S.S.3. S.A.S.Geometry Lesson: S.S.S. Postulate
2 Postulate: Side-Side-Side Postulate (S.S.S.) If the three sides of one triangle are congruent to the three sides of another triangle, then the two triangles are congruent.Postulate:Ex: Which sides must first be proved congruent in order to prove the triangles congruent using the S.S.S. Postulate?1)ABCD2)EF3)X
3 R T P X Given: Prove: Ex 1: Proof w/S.S.S. Statement Reason 1) 2) 3) 4)5)6)GivenGivenDef. line bisectorDef. midpointReflexive PostulateS.S.S. PostulateGeometry Lesson: S.S.S. Postulate
4 N Q P R E P N X L Q • P A V C R T Ex 2,3,4: Proofs w/S.S.S. 2) Given: Prove:EPNXLQ•3) Given:Prove:PAVCRT4) Given:Prove:Geometry Lesson: S.S.S. Postulate
5 A F C D B E K P H L E G H R N P Ex 5,6: Proofs w/S.S.S. 5) Given: Prove:Ex 5,6: Proofs w/S.S.S.KPHL6) Given:Prove:EGHRNPGeometry Lesson: S.S.S. Postulate
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