a trapizoid is the 2d shape for that
quadrilateral
Such a figure is called a parallelogram.
A rectangle (opposite sides are parallel which is a parallelogram!)
It is a rectangle or a square.
A square and a rhombus both have all sides equal and opposite sides parallel.
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.
A quadrilateral (ie 4-sided plane figure) with opposite sides equal and parallel
Two triangles
A quadrilateral (four sided figure) with opposite sides parallel and equal length see: http://dictionary.die.net/parallelogram
A quadrilateral with 4 right angles and opposite sides that are parallel can be either a rectangle if the adjacent sides are of different length or a square if the adjacent sides are of the same length.
Yes. A quadrilateral is any plane figure bounded by four straight lines. A parallelogram has both pairs of opposite sides parallel and is therefore a special kind of quadrilateral.
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.