1.

In the given figure, \[\mathbf{AB}\parallel \mathbf{CD}\]. Then what is the value of x?

A.  \[{{140}^{{}^\circ }}\]          
B.  \[{{45}^{{}^\circ }}\]           
C.  \[{{120}^{{}^\circ }}\]                                  
D.  \[{{75}^{{}^\circ }}\]
Answer» B.  \[{{45}^{{}^\circ }}\]           


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