Question

which angle is a vertical angle with ∠efd? ∠dfb ∠ced ∠bfc ∠afb

Explanation:

Step1: Recall vertical - angle definition

Vertical angles are formed when two lines intersect. They are opposite each other and have equal measures.

Step2: Identify intersecting lines

Lines $EB$ and $AD$ intersect at point $F$.

Step3: Determine vertical angle of $\angle EFD$

The angle opposite $\angle EFD$ at the intersection of lines $EB$ and $AD$ is $\angle AFB$.

Answer:

$\angle AFB$