| Description | Shape |
| All sides congruent and diagonals perpendicular | |
| One pair of opposite sides parallel and other two sides congruent | |
| All sides and angles congruent | |
| Opposite sides congruent, all right angles | |
| all sides congruent, diagonals perpendicular bisectors of each other | |
| Opposite sides congruent and consecutive angles supplementary | |
| 4 sides | |
| One pair of opposite sides parallel | |
| Opposite sides congruent and opposite angles congruent | |
| All right angles and diagonals bisect each other | |