A) \[60{}^\circ \]
B) \[90{}^\circ \]
C) \[120{}^\circ \]
D) \[30{}^\circ \]
Correct Answer: B
Solution :
From formula \[n=\frac{360{}^\circ }{\theta }-1\] \[3=\frac{360{}^\circ }{\theta }-1\] \[\theta =\frac{{{360}^{o}}}{4}={{90}^{o}}\]You need to login to perform this action.
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