Polygon Interior Angle
Find the measure of the missing angle(s)

Answer:
2x=80°
2x+20=100°
Step-by-step explanation:
2x+20+2x=180
4x+20=180
-20 -20
4x=160
4x/4=160/4
x=40
2x=80
2x+20=100
hopefully this helps :)
Answer:
x=40°
Step-by-step explanation:
2x+20°+2x=180°
4x+20=180°
4x=160°
x=40°