Rhomboid is your answer...
A rhomboid has four parallel sides. The opposite sides are equal, but the corners do not form right angles.
Hence it is not a Rhombus nor a rectangle and also cannot be square.
So rhomboid is your answer...
Hope it helps...
Regards;
Leukonov/Olegion.
The hierarchy is the following:
A polygon is a parallelogram if its opposite sides are parallel. No more request.
A polygon is a square if it's a parallelogram with equal sides and angles
A polygon is a rhombus if it's a parallelogram with equal sides.
A polygon is a square if it's a parallelogram with equal angles.
So, we have to build a figure whose opposites sides are parallel. but:
For example, if you pick the points
[tex]A(0,0),\ B = (10,0),\ C = (11,1),\ D = (1,1)[/tex]
And connect them, you'll have a paralleloram that is neither a square, rhombus nor rectangle.
