2 pairs of opposite sides are equal
2 pairs of opposite sides are equal and 1 right angle
parallelogram with equal diagonals
2 parallel lines only
diagonals bisect each other
4 equal sides
diagonal are perpendicular bisectors to each other
diagonals are perpendicular bisector and equal to each other
1 pair of opposite sides are equal and parallel
4 right angles
4 equal angles and 4 equal side
diagonals are not equal
diagonals are equal and bisect each other
2 pairs of opposite sides are parallel
