What is the size of each interior angle of a 12-sided regular polygon?
A
120o
B
150o
C
30o
D
180o
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
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 = \(\frac{1800}{12}\)
= 150o
Source: Myschool Past Questions Archive (Record #29442)