Triangle congruence from transformations

Learn how the definition of congruence using rigid transformations can be simplified to simple criteria when studying congruent triangles.

Proving the SSS triangle congruence criterion using transformations

Proving the SAS triangle congruence criterion using transformations

Proving the ASA and AAS triangle congruence criteria using transformations

Why SSA isn't a congruence postulate/criterion

Justify triangle congruence