Using the ASA Postulate, which parts of the pair of triangles should be congruent

Answer 1

two angles and the side between them. (ASA !)

better review the subject, if this one stumped you.

Answer 2

The ASA (Angle-Side-Angle) postulate states that if two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the triangles are congruent. (The included side is the side between the vertices of the two angles.)