What else would need to be congruent to show that ABC XYZ by ASA?

Answer: [tex]\overline{XY}=\overline{AB}[/tex]
Step-by-step explanation:
In the given picture , there rae two triangles ΔABC and ΔXYZ.
It is given that ∠X≅∠A and ∠Y≅∠B
To prove both the triangles are congruent by ASA postulate, we need the corresponding included side of the given congruent pairs of angles.
The included side of ∠X and ∠Y is XY
The included side of ∠A and ∠B is AB
Thus, the additional information we neewd to prove the given triangle congruent by ASA is
[tex]\overline{XY}=\overline{AB}[/tex]