I have attached an image of the right trapezoid.
Answer:
C: 107°
Explanation:
From the image attached, we can see that the right trapezoid has 2 internal angles which are right angles while it has a third angle which is 73°.
Now,we want to find angle WXY.
Sum of angles in a trapezoid is 360°.
Thus;
90 + 90 + 73 + ∠WXY = 360
253 + ∠WXY = 360
∠WXY = 360 - 253
∠WXY = 107°