Answer:
Step-by-step explanation:
∠AGB = ∠DGC {Vertically opposite angles}
∠AGB = 90°
∠AGE + ∠AGB + ∠BGF = 180 {Angles on straight line}
30 + 90 + x = 180
120 + x = 180
x = 180 - 120
x = 60°
Solution,
Angle AGB=90°[Being vertically opposite angles]
Now we have,
30°+Angle AGB+x=180°
or,30°+90°+x=180°
or,x=180-30-90
Hence,x=60
