Properties of Quadrilaterals If a quadrilateral is a ....

Parallelogram Rhombus Kite Isosceles Rectangle Square Trapezoid

Then... Opposite sides are Opposite sides are Opposite sides are Opposite sides are parallel Two disjoint pairs of The legs are congruent. parallel parallel parallel consecutive sides are All sides are congruent. congruent. The bases are parallel. Opposite sides are Opposite sides are All sides are congruent. congruent congruent All angles are right angles. The diagonals are The lower base angles Opposite angles are perpendicular are congruent. Opposite angles are Diagonals bisect each congruent. Diagonals bisect each other. congruent. other One diagonal is the The upper base angles Diagonals bisect each The diagonals are perpendicular bisector of are congruent. Diagonals bisect each Any pair of consecutive other. perpendicular. the other. other angles are The diagonals are supplementary Any pair of consecutive The diagonals bisect the One of the diagonals congruent Any pair of consecutive . angles are angles of the square. bisects a pair of opposite angles are All angles are right supplementary. angles. Any lower base angle is supplementary. angles. Any pair of consecutive supplementary to any The diagonals are angles are supplementary. One pair of opposite upper base angle. The diagonals are perpendicular. angles are congruent. congruent. The diagonals are The diagonals bisect the congruent. angles of the rhombus. The diagonals divide the The diagonals divide the square into four congruent rhombus into four isosceles right triangles. congruent right triangles.