The SSS Postulate

Postulate-The SSS postulate states that two triangles are congruent if the corresponding sides of the two triangles are congruent.

The SAS Postulate

Postulate-The SAS postulate states that two triangles are congruent if two corresponding sides and the included angle are congruent.

The ASA Postulate

Postulate-The ASA Postulate states that two triangles are congruent if two corresponding angles and the included side are congruent.

Example: To see an example on how to prove triangles congruent please go to the SECTION 3.3 for an example.