Answer:
x=60
Explanation:
using verticle theorem angle FC is 30 and angle AB is 90. Angle D = x
240+2x=360
60°
<DGC = <AGB
90 = 90
You know that line E and F is 180° since it is a straight line. On the staright line you now have two angels. You can now frigure out x° by doing this:
180° - (30° + 90°)
180° - 120°
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