3 lines are shown. A line with points A, F, D intersects with a line with points B, F, E at point F. Another line extends from point F to point C in between angle B F D.

Which are vertical angles?

AngleAFE and AngleBFD
AngleBFC and AngleDFE
AngleAFE and AngleCFD
AngleBFC and AngleEFA

AngleAFE and AngleCFD

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

In the given scenario, the lines intersect at point F, forming four angles:

1. Angle AFE is formed by line AF and line EF.
2. Angle BFD is formed by line BF and line DF.
3. Angle BFC is formed by line BF and line FC.
4. Angle DFE is formed by line DF and line EF.

Out of these four angles, the vertical angles are:
- Angle AFE and Angle CFD.