an octagon has two equal angle each 120° and all the remaining six angles are equal.find the measure of each of the six equal angles.
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all interior angles of octagon = (8-2)×180=1080
let each remaining angle be x
1 angle is 120 and second is also 120 and remaining are equal
120+120+6x=1080
x=(1080-240)/6
x=840/6
x=160
let each remaining angle be x
1 angle is 120 and second is also 120 and remaining are equal
120+120+6x=1080
x=(1080-240)/6
x=840/6
x=160
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