Answer:
∠ V = 130°
Explanation:
In a parallelogram opposite angles are congruent and consecutive angles are supplementary.
∠ S and ∠ V are not opposite angles, they are consecutive, then
∠ S + ∠ V = 180°
50° + ∠ V = 180° ( subtract 50° from both sides )
∠ V = 130°