The only terms that definitely apply are "quadrilateral" (or more specifically an "incongruent quadrilateral") and "quadrangle."
The polygon may also be a trapezoid or a trapezium, but it is also possible to have a trapezoid or trapezium with two sides equal. Also note that the British and American definitions of trapezoid and trapezium are exactly reversed: an American trapezoid is a British trapezium, and a British trapezoid is an American trapezium.
A polygon with 4 sides is called a quadrilateral. There is no special name to indicate that it has no two equal sides.
You are a rhombus.
a polygon with 4 right angles and 4 sides of the same length
Yes. Unless it happens to be a square, not all sides have the same length - and the definition of a regular polygon includes having all sides of the same length.
All the sides are the same length
It is irregular as not all the sides have the same length.
rhombus
A quadrilateral
regular polygon\
You are a rhombus.
You are a rhombus.
trapazoid
A rhombus perhaps?
An equilateral polygon is a polygon where the length of all the sides of the polygon are the same length.
The right answer is a rectangle.
A regular polygon requires all sides to be the same length; in a rectangle not all four sides are the same length (they form two pairs of sides of equal length) and so it is not a regular polygon.
No. Except that in a REGULAR polygon, all the sides must be of the same length and all the angles of the same measure.
a regular polygon