Answer:
ASA Postulate.
Step-by-step explanation:
In the given diagram:
• Angle:, Angle STV is congruent to angle UVT.
,
• Side:, TV is congruent to TV (being a shared side).
,
• Angle: ,Angle TVS is congruent to angle VTU.
Therefore, triangles STV and UVT are congruent by the ASA Postulate.