Angles S and V are supplementary.
Work Step by Step
The inscribed angles S and V intercept two arcs whose sum makes up a whole circle, which is 360∘. Since the measure of an inscribed angle is equal to half the measure of its intercepted arc, the sum of S and V must be half the measure of the sum of their arcs, which is 360/2=180∘. When the sum of the measures of two angles is equal to 180, they are supplementary angles.