Quadrilaterals

Parallelogram

Opposite sides are parallel
Opposite sides are congruent
Consecutive angles are supplementary
Opposite angles are congruent
Diagonals bisect each other

Rhombus

All properties of parallelograms
All sides are congruent
Diagonals are perpendicular
Diagonals bisect angles

Rectangles

All properties of a parallelogram
All angles are right angles
Diagonals are congruent

Squares

All properties of Rhombus and rectangle:
All sides congruent
Diagonals are perpendicular and bisect
All angles are right angles
Diagonals are congruent

Kite

Two pair of consecutive side are congruent
Diagonals are perpendicular
One diagonal bisects the other
Obe pair of opposite angles is congruent
One diagonal bisects one set of opposite angles

Trapezoid

Exactly one set of opposite sides are parallel
Midsegment is the average of the two bases
Midsegment is parallel to the two bases

Isosceles Trapezoids

All properties of Trapezoids
Legs are congruent
Bases are parallel
Lower base angles are congruent
Upper base angles are congruent
upper base angles are congruent
Diagonals are congruent
Lower base angles are supplementary to upper base angles