What is the size of each interior angle of a 12-sided reg...
What is the size of each interior angle of a 12-sided regular polygon?
120o
150o
30o
180o
Correct answer is B
Interior angle = (n - 2)180
but, n = 12
= (12 -2)180
= 10 x 180
= 1800
let each interior angle = x
x = (n−2)180n
x = 180012
= 150o
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