You mean with two of the sides being parallel and the other two being at a slant with each other? That would be a trapezoid.
Here's more information: http://en.wikipedia.org/wiki/Trapezoid
a rectangle, which has two sets of parallel side
A rhombus is a four sided shape where all sides are equal length and opposite sides are parallel.
A square has four parallel sides (two pairs of parallel sides).
a rectangle. it has four parallel sides each side is the same length as the one on the other side.
Not necessarily. A quadrilateral is a plane shape with four straight sides. There is no requirement for a side to be parallel to another.
It is not possible to have 1 parallel side since it must be parallel to another side. A four sided shape with 1 PAIR of parallel sides is a trapezium (or trapezoid).
Any four-sided shape is a Quadrilateral. Square, Rectangle, Parallelogram, rhombus, trapezoid etc. It may have no parallel sides as in a kite, 1 parallel side as in trapezoid or 2 parallel sides as in parallelogram.
The shape can only be a rectangle! A rectangle is a four-sided 2-dimentional figure, where every angle is a right angle, opposite sides are parallel, but the 4 sides are NOT equal.
Not sure how you can have only one parallel side. What is it parallel to?
its a shape
No. The sides of a shape don't need to be equal in length to be parallel.
rectangle