Find the missing angle

Answer:
If this is a parallelogram:
∠y = 112°
corners opposite the 112° corners = 68° [(360° - 112° - 112°)/2 = 68°]
∠z = 68° - 40° = 28°
∠x = ∠z = 28°
Answer:
x = 28°, y = 112°, z = 28°
Step-by-step explanation:
suppose it's a parallelogram,
in a parallelogram, opposite angles are congruent: y = 112°
40 + 112 + x = 180
=> x = 28°
If 2 lines are cut by a transversal, then the alternate interior angles are congruent: x = z => 28° = z