As shown in the diagram :
lines a and b are parallel and lines c and d are transversal that cut through lines a and b.
So, there are 3 types of angles that are congruent to the angle V
1) The vertex angles are congruent
So, the angle S is congruent to angle V
2) the angle Z is congruent to the angle V
They are corresponding angles
3) The angle W is congruent to the angle V
They are alternatives angles