How can you tell that a quadrilateral is a parallelogram? (Check all that
apply)
20 points
If both pairs of opposite sides are parallel
If both pairs of opposite sides are perpendicular
If both pairs of opposite sides are congruent
If both pairs of opposite sides are supplementary
If both pairs of opposite angles are congruent
If both pairs of opposite angles are supplementary
O
If the diagonals bisect each other
If the diagonals bisect the corners
If one pair of sides is both congruent and parallel
If one pair of sides is both congruent and perpendicular