A) 12
B) 10
C) 16
D) 14
Correct Answer: B
Solution :
[b] Let the number of sides of polygon is n. Then, according to the questions, \[\frac{(n-2)\times 180}{n}-\frac{360}{n}=108\] \[\Rightarrow \] \[\frac{180n-360-360}{n}=108\] \[\Rightarrow \] \[180n-108n=720\] \[\Rightarrow \] \[72n=720\] \[\therefore \] \[n=10\] |
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