Question

look at this diagram: if $overleftrightarrow{eg}$ and $overleftrightarrow{hj}$ are parallel lines and $mangle efd = 50.9^{circ}$, what is $mangle hif$?

Explanation:

Step1: Identify angle - relationship

$\angle EFD$ and $\angle HIF$ are corresponding angles.

Step2: Apply property of parallel lines

When two parallel lines are cut by a transversal, corresponding angles are equal. So $m\angle HIF=m\angle EFD$.

Answer:

$50.9^{\circ}$