Answer:
x = 138°
Explanation:
This is a hexagon since it has 6 angles.
The sum of interior angles for a hexagon is equal to 720° so to find the value of x we need to find the sum of given angles and subtract from 720:
86 + 145 + 120 + 119 + 112 + x = 720 add given angles
582 + x = 720 subtract 582 from both sides
x = 138°