Answer: The triangles' corresponding angles are congruent, and their corresponding sides are proportional; therefore, the triangles are similar.
Explanation:
If all the corresponding sides and angles of two triangles are congruent then, the two triangles are said to be congruent..
If the corresponding angles of two triangles are congruent and their corresponding sides are proportional then triangles are similar (not congruent).
Complete statement: The triangles' corresponding angles are congruent, and their corresponding sides are proportional; therefore, the triangles are similar.