G.6.B: Prove two triangles are congruent by applying the Side-Angle-Side, Angle-Side-Angle, Side-Side-Side, Angle-Angle-Side, and Hypotenuse-Leg congruence conditions.

Prove two triangles are congruent by applying the Side-Angle-Side, Angle-Side-Angle, Side-Side-Side, Angle-Angle-Side, and Hypotenuse-Leg congruence conditions.

Khan Academy Resources
Triangle congruence reviewDetermine congruent trianglesJustify triangle congruenceProve triangle propertiesProve triangle congruenceDetermining congruent trianglesExploring medial trianglesProving the SAS triangle congruence criterion using transformationsProving the SSS triangle congruence criterion using transformationsCalculating angle measures to verify congruenceProving the ASA and AAS triangle congruence criteria using transformationsProving triangle congruence
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