What are the congruence shortcuts?

Side-Side-Side Triangle Postulate (SSS) - If 3 sides of a triangle are congruent to 3 sides of another triangle, then the two triangles are congruent


Angle-Side-Angle Congruence Postulate (ASA) - Triangles are congruent if any two angles and their included side are equal in both triangles.


Side-Angle-Side Triangle Postulate (SAS) - If 2 sides of a triangle and the included angle are congruent to the 2 sides of another triangle and its included angle, then the two triangles are congruent.


Angle-Angle-Side Congruence Postulate (AAS) - Triangles are congruent if 2 pairs of corresponding angles and a pair of opposite sides are equal in both triangles.



http://jwilson.coe.uga.edu/EMT668/EMAT6680.Folders/Moushegian/EMAT%206690/Instructional%20Unit/Unit04.html

http://rchsbowman.wordpress.com/2009/10/20/geometry-notes-%E2%80%94-proving-triangles-congruent-2-asa-aas/