Question

In triangle ABC, d is a point on segment AC such that BD is a median. Which statement must be true?
1) Triangle ABD is congruent to triangle CBD
2) Angle ABD is congruent to angle CBD
3) Segment AD is congruent to CD
4) Segment BD is perpendicular to segment AC

Answer 1

I would say (1) is true, because have the same area.

Answer 2

Okay. thanks.