PARALLALOGRAM

RECTANGLE

TRAPEZOID

SQUARE

RHOMBUS

Opposite
sides parallel

Opposite
sides congruent

A pair of opposite sides parallel and
congruent

Diagonals
bisect each other

Opposite
pair of angles congruent

Four
right angles

Diagonals
are congruent

Diagonals
are perpendicular

Diagonals
bisect opposite angles

All
attributes of a

Rectangle

And a

rhombus

Four
congruent sides

One pair parallel sides - bases

Non-parallel sides - legs

ISOSCELES

TRAPEZOID

Both
pairs base angles congruent

Diagonals
are congruent

Median is parallel to bases,

and its measure is ½ sum of bases