HOME BACK

QUADRILATERAL

Main Menu > Quadrilateral > Parallelogram

Parallelogram

DEFINITION: A parallelogram is ANY quadrilateral that has TWO (2) PAIRS of PARALLEL SIDES that are OPPOSITE AND EQUAL in length. Opposite angles are equal but not necessarily right angles. They can be classified into the following three regular shapes:

Close

Lines are said to be
PARALLEL if they
are always the same
distance apart and
point in the same
direction so that they
will never meet.


Close

A QUADRILATERAL is ANY 2D shape with FOUR (4) SIDES and FOUR (4) ANGLES.

Square Rectangle Rhombus

OPTIONAL: INTERESTING FACT

INTERESTING FACT: The area of ANY parallelogram (square, rectangle, or rhombus) is the base (bottom line) times the height (this is, base x height).


IMPORTANT NOTE: It is important to note that a parallelogram must have not one but TWO PAIRS OF PARALLEL SIDES.


So all quadrilaterals are not parallelograms. A trapezoid and a kite are not parallelograms because they do not have two pairs of parallel sides.