The correct statement is: 1. The triangles are similar because they have 3 pairs of congruent angles.
In similar triangles, corresponding angles are congruent. If there are three pairs of congruent angles, then the triangles are similar.
This is known as the Angle-Angle-Angle (AAA) similarity criterion, stating that if the corresponding angles of two triangles are congruent, then the triangles are similar.