Please help ASAP
What is the measure of YZ?
A.142
B.52
C.128
D.38

Work Shown:
(arc YZ + arc XU)/2 = angle YVZ
(arc YZ + 38)/2 = 90
arc YZ + 38 = 90*2
arc YZ + 38 = 180
arc YZ = 180 - 38
arc YZ = 142