Answer:
80° , 80° , 100° , 100°
Explanation:
the exterior angles of a polygon sum to 360°
sum the 4 angles, equate to 360 and solve for x
2x + 2x + 80 + 80 = 360 ( simplify left side )
4x + 160 = 360 ( subtract 160 from both sides )
4x = 200 ( divide both sides by 4 )
x = 50
Then
2x = 2 × 50 = 100
the 4 exterior angles are 80° , 80° , 100° , 100°