Answer:
120°
Step-by-step explanation:
In triangle BDC, <CDB = <DCI , because they are alternate interior angles.
Also, <DBC = <BCH , {alternate interior angles}
And <BCD + <CDB + <DBC = 180°
=> 2x + 4x + 3x = 180°
=> 9x = 180°
Divide by 9,
=> x = 20°
<ABF = <BCI
= 2x + 4x
= 6x
= 6*20°
= 120°
