A) \[15{}^\circ \]
B) \[30{}^\circ \]
C) \[36{}^\circ \]
D) \[75{}^\circ \]
Correct Answer: B
Solution :
[b] \[x=\frac{1}{5}(180{}^\circ -x)\Rightarrow 5x=180{}^\circ -x\] or \[6x=180{}^\circ \]or \[x=30{}^\circ \]You need to login to perform this action.
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