Answer:
AAS postulate
Step-by-step explanation:
In the figure attached, the complete question is shown.
The Angle, Angle, Side postulate states that if two angles and the non-included side of one triangle are congruent to two angles and the non-included side of another triangle, then these two triangles are congruent. In this case the two congruent angles are X with L and Z which is the same angle for both triangles; and the non-included side is the side YZ.
