Four angles of a nine sided polygon are 1450 each and the remaining angles are
equal. Find the value of each equal angle.
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Two angles of an eight sided polygon are 142
o
and 176
o
and the remaining angles are equal to each other. Let each equal angle =x
Sum of all interior angles of a polygon is = 180
o
(n−2)=180
o
(8−2)=1080
o
Now,
142
o
+176
o
+(8−2)×x=1080
o
⟹ 6x=762
⟹x=127
o
Each equal angle = 127
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