Question

look at this diagram: if df and gi are parallel lines and m∠feh = 111°, what is m∠ihj?

Explanation:

Step1: Identify angle - relationship

$\angle FEH$ and $\angle IHJ$ are vertical - angles.

Step2: Recall vertical - angle property

Vertical angles are congruent, i.e., if two angles are vertical angles, they have the same measure.

Answer:

$111$