You may mean a quadrilateral (two-dimensional polygon with 4 sides), since a quadrangle is an open space surrounded by buildings on four sides.
You can form an irregular quadrilateral by having 4 different angles, or having at least two sides of unequal length. If two angles are congruent along the same side, you will have a trapezoid (UK trapezium).
A trapezoid
A rhombus for example
It could look like an arrowhead (or delta).
parallelagram http://en.wikipedia.org/wiki/Parallelagram well specifically you would be a rectangle which has parallel sides like a square. a parallelogram can be a square or a rectangle because they all have parallel sides but only squares and rectangles have right angles on all sides. parallelograms have congruent sides which require acute and obtuse angles.
A quadrilateral with two pairs of parallel sides is a parallelogram.
Cannot show you but it is like a triangle where the top has been chopped off by a line parallel to its base.
Six parallel sides in pairs? Sounds like a cube.
The number of pairs of parallel sides in a polygon varies depending on the type of polygon. For example, a rectangle has two pairs of parallel sides, while a trapezoid has one pair. Regular polygons, like a hexagon, typically do not have any pairs of parallel sides. Therefore, the total can range from zero to multiple pairs, depending on the specific polygon in question.
Both have four sides comprising two pairs of parallel sides.
Like rectangles, they have two pairs of parallel sides.
Well, honey, you sound like a parallelogram that got dressed in the dark. With two pairs of parallel sides of different lengths, you're definitely not a boring square or rectangle. You're a sassy trapezoid, strutting your stuff with style and attitude.
Looks like a parallelogram