The construction has been created so that the arcs with centers at $B$B and $C$C are congruent.
Which of the following choices describe $\overrightarrow{AD}$›‹AD ?
Angle bisector
Midsegment
Perpendicular bisector
None of the above
The angle $\angle EDF$∠EDF is constructed from the given angle $\angle BAC$∠BAC by drawing a set of dotted arcs.