A parallelogram is a 4-sided figure in which the opposite sides are parallel A diamond shape is a parallelogram Squares and rectangles are special kinds of parallelogram
If there are two sets of parallel sides in a quadrilateral, then it is a parallelogram
A parallelogram is a quadrilateral in which both pairs of opposite sides are parallel
A quadrilateral with 2 pairs of parallel sides, 2 pairs of equal angles, and 2 pairs of equal sides
A right-lined quadrilateral figure, whose opposite sides are parallel, and consequently equal; sometimes restricted in popular usage to a rectangle, or quadrilateral figure which is longer than it is broad, and with right angles
(n) A quadrilateral (four-sided polygon) in which opposite sides are parallel The square, rectangle, rhombus, and rhomboid are all parallelograms