Answer:
Step-by-step explanation:
Sum of interior angles of a triangle = Exterior angle
m∠VWX + m∠WVX = Exterior angle = 155°
m∠VWX + 86° = 155°
m∠VWX = 69°
69 degree
m<VWX + 86 = 155
m<VWX = 155 - 86 = 69
