Quadrilaterals 
Name________________________________
Quadrilateral Parallelogram
4 sides
Sum of interior
angles = 360º
One pair of
parallel sides
Opposite sides are
parallel
Opposite sides are
congruent
Opposite angles
are congruent
Equilateral
Equiangular
Consecutive
angles between
the bases are
supplementary
Diagonals are
congruent
Diagonals bisect
each other
Diagonals are
perpendicular
Rectangle
Square
Rhombus
Trapezoid
Isosceles
Trapezoid
Right
Trapezoid
Kite
Kites
Kites have two pairs of consecutive congruent sides.
Kites have 2 vertex angles (the two angles
between each pair of congruent sides)
Kites have 2 non-vertex angles (the two angles
between the non-congruent sides)
The non-vertex angles are congruent
The vertex angles are bisected by the diagonal connecting them.
The diagonals of a kite are perpendicular
The diagonal connecting the vertex angles is the
perpendicular bisector of the other diagonal.
Trapezoid
Trapezoids have exactly one pair of parallel sides, called bases
The pair of angles that share a base as a common
side are called base angles.
The consecutive angles between the bases are supplementary
(1 base angle from one base and 1 base angle
from the other base).
Isosceles Trapezoid
Trapezoid
The non-parallel sides are congruent.
The base angles are congruent.
The diagonals are congruent.
Right Trapezoid
Trapezoid
Has two consecutive right angles
Parallelogram
Opposite sides are parallel.
Opposite sides are congruent.
Opposite angles are congruent.
Consecutive angles are supplementary.
Diagonals bisect each other.
Rectangle
Equiangular (4 right angles)
Consecutive sides are perpendicular (4 right angles).
A rectangle is a Parallelogram
Diagonals are congruent
Rhombus
Equilateral
A rhombus is a Parallelogram
Diagonals are perpendicular
The diagonals bisect the angles of the rhombus
Square
A square is a Parallelogram, Rectangle, Rhombus
Diagonals are congruent
Diagonals are perpendicular