1) Quadrilateral with 2 pairs of parallel sides is a parallelogram
2) Quadrilateral with 1 pair of parallel sides is a trapezoid
3) 4 sided polygon is a quadrilateral
4) Quadrilateral with 2 pairs of parallel sides, 4 congruent sides, and 4 right angles is a square
5) Quadrilateral with 2 pairs of parallel sides, and 4 right angles is a rectangle
6) Quadrilateral with 2 pairs of parallel sides, 4 congruent sides is a rhombus
7) Quadrilateral with 1 pair of parallel sides, 1 pair of congruent sides is isosceles trapezoid