Proving Triangles Congruent: SSS and SAS

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Presentation transcript:

Proving Triangles Congruent: SSS and SAS Section 4-3 Proving Triangles Congruent: SSS and SAS

Side-Side-Side (SSS) Congruence Postulate If three sides of one triangle are congruent to three sides of second triangle then the triangles are congruent.

M P N Q S R By SSS Postulate,

Side-ANGLE-Side (SAS) Congruence Postulate If two sides and the included angle of one triangle are congruent to two sides and the included angle of a second triangle, then the two triangles are congruent.

Included Angle The angle in between the congruent sides!

P S Q W X Y By SAS Postulate,