**Congruent triangles are identical triangles.**

**That means in** **triangles**** whose** **angles and sides**** are equal, their** **area**** and** **perimeter**** will also be equal.**

But keep in mind that this case is different from when triangles are similar, that is, when the angles are equal but the side lengths are different in the corresponding ratio.

### Congruence Criteria

**To prove that 2 triangles are congruent we can use one of the following criteria:**

**SAS - side, angle, side****ASA - angle, side, angle****SSS- side, side, side****SSA- side, side, angle**

**By verifying one of the triangle congruence criteria, we can affirm that the triangles are congruent.**