Final answer:
Vertical angles are pairs of non-adjacent angles formed when two lines intersect. They are congruent.
Step-by-step explanation:
Vertical angles are pairs of non-adjacent angles formed when two lines intersect. In the given options, the pairs of vertical angles are:
- LEA and BAC
- LEA and CAD
- LEA and ZFA
- BAC and CAD
- BAC and ZDA
- CAD and ZFA
Vertical angles are congruent, which means they have the same measure. For example, if angle LEA measures 45 degrees, then angle BAC, CAD, and ZFA will also measure 45 degrees.