It can be :-
1- a parallelogram
2- Square if diagonals are perpendicular and congruent
3- Rectangle if diagonals are congruent
4- Rhombus if diagonals are perpendicular
rhombus
They are rhombus and parallelogram.
A rectangle, by definition is an irregular quadrilateral. It has two pairs of parallel sides.
An irregular quadrilateral can have zero, one, or two pairs of parallel lines, but typically it has no parallel lines. By definition, an irregular quadrilateral does not have equal sides or angles, which means it does not conform to the properties of specific types of quadrilaterals like rectangles or parallelograms that have parallel sides. Thus, the most common scenario for an irregular quadrilateral is having no parallel lines at all.
I would be seriously concerned if a quadrilateral had more than two pairs of opposite sides parallel! A quadrilateral with two pairs of opposite sides parallel is a parallelogram.
Most of the time.If a quadrilateral contains no parallel lines or two pairs of parallel lines then it is not a trapezium.
A parallelogram
Not if the two pairs give rise to 4 parallel lines.
rhombus
A square has.
The quadrilateral with two pairs of parallel sides
They are rhombus and parallelogram.
It is called a Rhombus.
parralelagram, which includes rectangles and squares
A rectangle.
A rectangle, by definition is an irregular quadrilateral. It has two pairs of parallel sides.
If it has 2 pairs of parallel lines it is a parallelogram, if it is a quadrilateral. If there is not restrictions on the number of sides, then there are many answers