The sum of the interior angles of regular polygon is 1800o. How many sides has the polygon?
- 16
-
12
- 10
- 8
The correct answer is: B
Explanation
Sum = (n - 2)1801800 = (n - 2)180
divide both sides by 180o
\(\frac{1800}{180}\) = (n - 2)\(\frac{180}{180}\)
10 = n - 2
10 + 2 = n
n = 12