Properties of Quadrilaterals

Front

A quadrilateral with both pairs of opposite sides parallel and congruent.

Back

Parallelogram

Front

*Opposite sides are parallel and congruent;

*Opposite angles are congruent;

*Diagonals bisect each other and one diagonal divides the figure into two congruent triangles.

Back

Properties of a Parallelogram

Front

No lines of symmetry

Back

parallelogram

Front

A quadrilateral with four right angles.

Back

Rectangle

Front

∗Opposite sides are parallel and congruent;

∗All four angles are congruent and each angle measures 90°;

∗Diagonals are congruent and bisect each other.

Back

Rectangle

Front

Rectangles have two lines of symmetry.

Back

Lines of symmetry in rectangles

Front

A quadrilateral with four congruent sides.

Back

Rhombus definition

Front

All sides are congruent; opposite sides are parallel; opposite angles are congruent; diagonals bisect each other at right angles.

Back

Properties of a rhombus

Front

Rhombi have two lines of symmetry.

Back

Lines of symmetry in rhombi

Front

A quadrilateral that is a regular polygon with four congruent sides and four right angles.

Back

Square definition