1.

In figure, abcd is a quadrilateral in which \[AB\parallel CD\] find x and y.

A.  \[{{100}^{{}^\circ }},{{60}^{{}^\circ }}\]  
B.  \[{{90}^{{}^\circ }},{{50}^{{}^\circ }}\]
C.  \[{{110}^{{}^\circ }},{{70}^{{}^\circ }}\]               
D.  \[{{120}^{{}^\circ }},{{60}^{{}^\circ }}\]
Answer» B.  \[{{90}^{{}^\circ }},{{50}^{{}^\circ }}\]


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