A) 14
B) 16
C) 12
D) 18
Correct Answer: C
Solution :
[c] Let the measure of exterior angle be \[x{}^\circ .\] Then, measure of interior angle = \[5x{}^\circ \] Now, interior angle + exterior angle = \[180{}^\circ \] \[5x+=180\] \[x=\frac{180}{6}=30{}^\circ \] \[\therefore \]Total sides of polygon \[=\frac{360}{\text{Exterior}\,\text{angle}}\] \[=\frac{360}{30}=12\] |
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