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4-5 Other Methods of Proving Triangles Congruent

Proving Triangles Congruent. The SSS (side-side-side), SAS (side-angle-side) and ASA (angle-side-angle) Postulates gave us three methods of proving triangles congruent.There are two other methods that we will develop in this chapter. Proving Triangles Congruent. Theorem 4-3 AAS Theorem (Angle

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4-5 Other Methods of Proving Triangles Congruent

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    1. 4-5 Other Methods of Proving Triangles Congruent

    2. Proving Triangles Congruent The SSS (side-side-side), SAS (side-angle-side) and ASA (angle-side-angle) Postulates gave us three methods of proving triangles congruent. There are two other methods that we will develop in this chapter

    3. Proving Triangles Congruent Theorem 4-3 AAS Theorem (Angle-Angle-Side) If 2 angles and a non-included side of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent Given: < B = < E; < C = < F; AC = DF Prove ABC = DEF You can prove the triangles congruent if you can apply one of the SSS, SAS or ASA postulates. You can use ASA Postulate if you first show that < A = < D. To do that, use the fact that the other two angles of triangle ABC are congruent to the other two angles of triangle DEF

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