Answer:
5) 100° + 40° + (2x)° = 360°
140° + (2x)° = 360°
(2x)° = 220°
x = 110
Angle E measures 110°.
6) 60° + 110° + 110° + x° = 360°
280° + x° = 360°
x = 80
Angle G measures 80°.