a hectagon had 3 equal angle each of a angle 120 degree and other 4 angle are equal find the size of equal angle
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sum of the angles of hectagon = 7=900 degree
120+120+120+x+x+x+x = 900 given
360 + 4x = 900
4x = 900-360
4x = 540
x = 540 / 4
x = 135 degree
120+120+120+x+x+x+x = 900 given
360 + 4x = 900
4x = 900-360
4x = 540
x = 540 / 4
x = 135 degree
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