A) \[{{0}^{o}}\]
B) \[{{50}^{o}}\]
C) \[{{80}^{o}}\]
D) \[{{90}^{o}}\]
Correct Answer: D
Solution :
\[x+{{55}^{o}}={{180}^{o}}\] [Since EF||AB] \[x={{125}^{o}}\] and \[z={{90}^{o}}-{{55}^{o}}={{35}^{o}}\] \[x-z={{125}^{o}}-{{35}^{o}}={{90}^{o}}\]You need to login to perform this action.
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