If quadrilateral WXYZ is a parallelogram, which segment of the figure must be congruent to segment ZV¯¯¯¯¯¯¯¯?

WZ¯¯¯¯¯¯¯¯¯
WV¯¯¯¯¯¯¯¯¯
ZX¯¯¯¯¯¯¯¯
XV¯¯¯¯¯¯¯¯

If quadrilateral WXYZ is a parallelogram, then opposite sides are congruent.

Therefore, segment ZV¯¯¯¯¯¯¯¯ must be congruent to segment WX¯¯¯¯¯¯¯¯.