Question

two angles of a hexagon are 140 degree and 160 degree if the remaining four angles are equal find each equal angle

Answer 1

Let the each angle is X
X+X+160+140=360
2x+160+140=360
2x+300=360
2x=360-300
2x=60
X=60/2
X=30

Answer 2

my mathematics answer is a 105