1.

In the given figure if \[{{l}_{1}}||{{l}_{2}}\] what is \[x+y\] in terms of \[{{w}^{o}}\] and\[{{z}^{o}}\]?

A. \[{{180}^{o}}-{{w}^{o}}+{{z}^{o}}\]        
B. \[{{180}^{o}}+{{w}^{o}}-{{z}^{o}}\]
C.                    \[{{180}^{o}}-{{w}^{o}}-{{z}^{o}}\]
D.        \[{{180}^{o}}+{{w}^{o}}+{{z}^{o}}\]
Answer» B. \[{{180}^{o}}+{{w}^{o}}-{{z}^{o}}\]


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