(HELP) The provided diagram of triangle ABC will help you to prove that the base angles of an isosceles triangle are congruent.
The first step is to draw auxiliary line AO. What must be true about AO in order to complete the proof using the ASA
(Angle Side Angle) triangle congruency theorem? Classify each statement as needed or not needed to complete the
proof
AO bisects < BAC
AO is perpendicular to BC
Point O is the midpoint of BC
AO is an altitude