Congruent triangles have congruent corresponding sides and congruent corresponding angles. In this topic, you have learned to identify the corresponding parts of triangles and how to determine if the triangles are congruent. You explored using the SSS and SAS Postulates to help you more easily identify congruent triangles or determine if triangles are congruent. These will be useful tools as you learn to use formal proofs to verify triangle congruence.