To Proves statements if two triangles are congruent, we have to follow a guide or steps on how to prove using the two-column proof. Below are the suggested steps,

1. Draw/ illustrate the two triangles and label the congruent parts.
2. Note the parts of the two triangles that were given.
3. Analyze carefully the two triangles, think of the possible congruence postulates that can be used to prove the congruency of the two triangles (SSS, SAS, and ASA) from the given.
4. Use the above list of definitions, theorems, and postulates.​