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In the diagram, chords $\overline{XY}$ and $\overline{VW}$ are extended to meet at $U.$  If $\angle U = 30^\circ$, minor arc $XY$ is $180^\circ$, and minor arc $VW$ is $90^\circ$.  Find arc $WY$, in degrees.

 
 Dec 22, 2023

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