Question

HELP Given: ABCD is a parallelogram and AC bisects BD. Prove: AC bisects

Answer 1

2) $ABCD$ is a rhombus (a parallelogram with perpendicular diagonals is a rhombus)

3) $\overline{AC}$ bisects $\angle BCD$ (diagonals of a rhombus bisect the angles from which they are drawn)