G.G-CO.B.8: Explain how the criteria for triangle congruence (ASA, AAS, SAS, and SSS) follow from the definition of congruence in terms of rigid motions.

Explain how the criteria for triangle congruence (ASA, AAS, SAS, and SSS) follow from the definition of congruence in terms of rigid motions.

Khan Academy Resources
Triangle congruence reviewJustify triangle congruenceCorresponding parts of congruent triangles are congruentTriangle congruence postulates/criteriaWhy SSA isn't a congruence postulate/criterionProving the SAS triangle congruence criterion using transformationsAngle congruence equivalent to having same measureProving the SSS triangle congruence criterion using transformationsSegment congruence equivalent to having same lengthProving the ASA and AAS triangle congruence criteria using transformations
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