A) \[70{}^\circ \]
B) \[36{}^\circ \]
C) \[72{}^\circ \]
D) \[44{}^\circ \]
Correct Answer: B
Solution :
\[\alpha +2\beta ={{180}^{o}}\] and \[\beta =2\alpha \] \[\alpha ={{36}^{o}}\]You need to login to perform this action.
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