Answer: First one
Step-by-step explanation:
- The SAS congruence postulate says that if two pairs of corresponding sides and their included angle are congruent , then the two triangles are congruent.
From the given picture , the first pair of triangles is having two pairs of corresponding sides and their included angle that are congruent.
In the second pair we have two pairs of corresponding angles and their included side are congruent , then the two triangles are congruent, then the triangles are congruent by ASA.
- The ASA congruence postulate says that if two pairs of corresponding angles and their included side are congruent , then the two triangles are congruent.
Thus , the first pair of triangles are congruent by SAS.
