Answer:
by ASA
Explanation:
In triangle PTU and triangle PSQ
[Side] [Given]
[Angle]
Vertical angles are those angles which are opposite to each other.
{Angle]
ASA(Angle-Side-Angle) postulates states if two angles and one included side of one triangle are congruent to two angles and the included side of the other triangle, then these triangle are congruent.
by ASA postulates;
![\triangle PTY \cong \triangle PSQ](https://img.qammunity.org/2020/formulas/mathematics/middle-school/podgfjgy0l7c1k4oos75bc4w5ekqlpywsz.png)