which pair of triangles can be proven congruent by sas?

which pair of triangles can be proven congruent by sas?
Answer
Explanation:
Step1: Recall SAS congruence criterion
SAS (Side - Angle - Side) states that if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then the two triangles are congruent.
Step2: Analyze first set of triangles
In the first set of triangles, we have a common side. The two segments on the base are equal (marked with single - hash marks), and the right - angle is the included angle between the common side and the base segments. So, we have two sides and the included angle congruent.
Step3: Analyze second set of triangles
In the second set of triangles, we do not have information about the sides being equal in the correct order for SAS. The angles are marked, but we don't have two sides and the included angle congruent as required by SAS.