Answer:
Step-by-step explanation:
The given quadrilateral is an isosceles trapezoid. This is because the two bases(lower and upper) are equal. The lower base angles are congruent. The upper base angles are also congruent. Therefore, each lower base angle is supplementary to the upper base angle on the same side. This means that
Angle W and angle Z are Supplementary. The sum of supplementary angles is 180°. It means that
112 + angle Z = 180
Angle Z = 180 - 112 = 68 degrees
