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What is the size of each interior angle of a 12-sided regular polygon?

What is the size of each interior angle of a 12-sided regular polygon?

A.
120^o
B.
150^o
C.
30^o
D.
180^o

Correct Answer: Option B

Explanation

Interior angle = (n – 2)180
but, n = 12
= (12 -2)180
= 10 x 180
= 1800
let each interior angle = x
x = (frac{(n – 2)180}{n})
x = (frac{1800}{12})
= 150^o