Answer:
x = 42˚
Explanation:
1) Find the angle shared by 138˚. 180-138 = 42˚.
2) Now we know that one of the angles in the pentagon is 42˚.
3) the other opposite angle is 138˚ as well.
Hopefully this makes sense! I attached a picture below.
6x = 360-138
x= 222/6
x= 37°
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