1. A rhombus is a quadrilateral.
2 A rhombuses opposite sides are parallel
3. Its opposite angles are congruent.
4 .Its diagonals are perpendicular bisectors of each other
A rhombus is a special case of a parallelogram in that all four sides are equal in length, not just the opposite sides.
A square is a special case of a rhombus in that all the angles are equal (at 90°).