Answer:
ASA
Step-by-step explanation:
The angles shown to be congruent are on either end of the side shown to be congruent. That is, in order, you have a corresponding Angle, a corresponding Side, and a corresponding Angle that you have shown to be congruent. Hence you can claim triangle congruence by the ASA theorem.
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Angles U and Q are at either end of segment QU, so <em>the segment is between the angles</em>. If it were off to one side of the two angles, then you would claim AAS congruence.