A) \[{{75}^{o}}\]
B) \[{{55}^{o}}\]
C) \[{{160}^{o}}\]
D) \[{{145}^{o}}\]
Correct Answer: D
Solution :
Draw \[PQ||AB\] and CD.
From the figure, \[x={{20}^{o}}+({{180}^{o}}-{{55}^{o}})\] \[PQ||AB||CD.\] \[\Rightarrow \] \[x={{20}^{o}}+{{125}^{o}}={{145}^{o}}\]
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