Question 1109017
sum of angles is (n-2)(180)
x= number of angles that are 150, 140, and 160
150x+140x+160x=(n-2)180 and here n=3x
450x=(3x-2)(180)
2.5x=3x-2
0.5x=2
x=4
12 sided polygon
(n-2)(180)=1800 degrees sum of interior angles
150*4=600
140*4=560
160*4=640
add to 1800 degrees