Rectangle
Parallelogram in which at least one angle is right
Square
Parallelogram that is both a rectangle and a rhombus
Kite
quadrilateral in which two disjoint pairs of consecutive sides are congruent
Parallelogram
quadrilateral in which both pairs of opposite sides are parallel
Trapezoid
quadrilateral with exactly one pair of parallel sides. (parallel sides are bases)
Isosceles Trapezoid
trapezoid in which non-parallel sides are congruent
Rhombus
parallelogram in which at least 2 consecutive sides are congruent
Quadrilateral
4 sided polygon
Polygon
closed figure with no curved sides