SOLUTION: An octagon has two equal angles each 120° and all the remaining six angles are equal. Find the measure of each of the six angles.

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Question 1003132: An octagon has two equal angles each 120° and all the remaining six angles are equal. Find the measure of each of the six angles.

Answer by dkppathak(439) About Me  (Show Source):
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An octagon has two equal angles each 120° and all the remaining six angles are equal. Find the measure of each of the six angles.
Angle sum of octagon will be =(n-2)x180=(8-2)x180=6x180 degree
as per given conditions two angles are 120 degree each and other six angles are equal . let six equal angle are X
six angle will be 6x
120+120+ 6 X =6x180
240+6X = 1080
6X=1080-240=840
X=840/6=140 degree
answer 140 degree