1. SquareRectangleTrapezoidRhombusParallelogram

2. SquareRectangleTrapezoidRhombusParallelogram Quadrilateral At least 1 pair of parallel sides 4 congruent or equal sides Opposite sides are parallel Quadrangle Parallelogram Opposite sides that are equal in length Quadrilateral At least 1 pair of parallel sides Opposite sides are parallel Quadrangle Parallelogram 4 right angles Opposite sides that are equal in length Quadrilateral At least 1 pair of parallel sides Quadrangle Quadrilateral At least 1 pair of parallel sides Opposite sides are parallel Quadrangle Parallelogram Opposite sides that are equal in length 4 congruent or equal sides Quadrilateral At least 1 pair of parallel sides Opposite sides are parallel Quadrangle Parallelogram Opposite sides that are equal in length

3. Quadrilateral Quadrangle Opposite sides are parallel Parallelogram Four congruent or equal sides Opposite sides that are equal in length Four right angles At least one pair of parallel sides