Step-by-step explanation:
ΔSVX ≅ ΔUTX            Given
SV // TU Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Given
SV ≅ TU                 Corresponding part of congruent triangle
VUTS parallelogram        Definition of parallelogram.
Hint: 1) If any one pair of opposite side is congruent and parallel, then the quadrilateral is parallelogram.
2) If two pair of opposite sides are parallel then it is a parallelogram.