- Square: Attributes: All sides equal, all angles 90 degrees, opposite sides parallel, diagonals bisect each other at 90 degrees, diagonals equal in length. Subgroups: Rectangle, Parallelogram, Trapezoid, Rhombus
- Rectangle: Attributes: Opposite sides equal, all angles 90 degrees, opposite sides parallel, diagonals bisect each other, diagonals equal in length. Subgroups: Parallelogram, Trapezoid, Rhombus
- Parallelogram: Attributes: Opposite sides equal and parallel, opposite angles equal, diagonals bisect each other. Subgroups: Trapezoid, Rhombus
- Trapezoid: Attributes: At least one pair of opposite sides parallel. Subgroups: Rhombus
- Rhombus: Attributes: All sides equal, opposite sides parallel, opposite angles equal, diagonals bisect each other at 90 degrees. Subgroups: Parallelogram, Trapezoid
Parent Tip: Review the logic above to help your child master the concept of quadrilateral sorting worksheet.