Terms in this set (6) two pairs of opposite sides parallel. two pairs of opposite sides congruent. one pair of opposite sides both parallel and congruent. two pairs of opposite angles congruent. one angle is supplementary to both consecutive angles. Diagonals bisect each other. Click to see full answer. Besides, what are the 5 ways to prove a quadrilateral is a parallelogram? There are five ways to prove that a quadrilateral is a parallelogram: Prove that both pairs of opposite sides are congruent. Prove that both pairs of opposite sides are parallel. Prove that one pair of opposite sides is both congruent and parallel. Prove that the diagonals of the quadrilateral bisect each other. Also, is a kite a parallelogram? Explanation: A kite is a quadrilateral with two disjoint pairs (no side is in both pairs) of equal-length, adjacent (sharing a vertex) sides. A parallelogram also has two pairs of equal-length sides, however they must be opposite, as opposed to adjacent. Just so, what are the 6 properties of a parallelogram? There are six important properties of parallelograms to know: Opposite sides are congruent (AB = DC). Opposite angels are congruent (D = B). Consecutive angles are supplementary (A + D = 180°).Is rhombus a parallelogram?DEFINITION: A rhombus is a parallelogram with four congruent sides. THEOREM: If a parallelogram is a rhombus, each diagonal bisects a pair of opposite angles. THEOREM Converse: If a parallelogram has diagonals that bisect a pair of opposite angles, it is a rhombus.