2 Points
1 answer:
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see the attached figure to better understand the problem
we know that
In a parallelogram opposite angles are congruent, and consecutive angles are supplementary
So
in this problem
∠Y=°
∠W=∠Y
∠W=°
∠Z=∠X
∠Y+∠Z=°
∠Z=
∠Z=°
∠X=∠Z
∠X=°
therefore
the answer is
∠Y=°
∠W=°
∠X=°
∠Z=°
