other than itself, which angle is congruent to \\angle dfe?

$other than itself, which angle is congruent to \\angle dfe?$

other than itself, which angle is congruent to \angle dfe?

Vertical angles are formed when two lines intersect. They are opposite each other and are congruent.

Looking at the diagram, the angle opposite to ∠DFE is ∠BFA.

∠BFA