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Learn how to prove triangles are congruent using Side-Side-Side (SSS) and Side-Angle-Side (SAS) postulates in this 42-minute geometry lesson. Master the fundamental concepts of triangle congruence by exploring when three sides or two sides and the included angle are sufficient to establish that two triangles are identical in all their parts. Practice applying these postulates through step-by-step examples and gain confidence in constructing formal geometric proofs.
