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SSS

Two triangles are congruent if all 3 sets of corresponding sides are congruent.

SAS

Two triangles are congruent if 2 sets of corresponding sides and their included angles are congruent.

ASA

if two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the two triangles are congruent

AAS

If two angles and a nonincluded side of a triangle are congruent to two angles and the corresponding nonincluded side of another triangle, the two triangles are congruent

CPCTC

corresponding parts of congruent triangles are congruent; If you use a congruence shortcut, (SSS,SAS,ASA,AAS) to show that 2 triangles are congruent, then you can use this to show that any of their corresponding parts are congruent