+466 Let $WXYZ$ be a trapezoid with bases $\overline{XY}$ and $\overline{WZ}$. In this trapezoid, $\angle ZXW = 120^\circ$, $\angle XWZ = 60^\circ$, and $\angle XYZ = 120^\circ$. Find $\angle YXZ$, in degrees.
+1946 XZW will form a triangle △XZW
∠ZXW=90∘∠XWZ=60∘
So ∠XZW=180∘−90∘−60∘=30∘
Thanks! :)
