A) \[{{80}^{o}},{{60}^{o}}\]
B) \[{{60}^{o}},{{40}^{o}}\]
C) \[{{60}^{o}},{{80}^{o}}\]
D) \[{{40}^{o}},{{60}^{o}}\]
Correct Answer: A
Solution :
\[{{60}^{o}}\] & y are vertically opposite angles which are equal \[\Rightarrow \] \[y={{60}^{o}}\] In the triangle, \[x+{{60}^{o}}+{{40}^{o}}={{180}^{o}}\] (Angle sum property) \[\Rightarrow \] \[x={{180}^{o}}-{{100}^{o}}={{80}^{o}}\]You need to login to perform this action.
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