A rhombus.
quadrilateral
It is a parallelogramIf one of the angles is a right angle (then they all are) and the quadrilateral is a rectangle.If both pairs of sides are equal in length (but none of the angles is a right angle) the quadrilateral is a rhombus.If the sides are equal and one of the angles is a right angle, the quadrilateral is a square.
rhombus
A rectangle
A Rhombus.
A quadrilateral with four equal sides and parallel sides that are not perpendicular to each other is known as a rhombus. In a rhombus, opposite sides are parallel, and all four sides are of equal length. While the angles are not necessarily right angles, the opposite angles are equal, and adjacent angles are supplementary. This shape maintains its properties regardless of the angles between the sides.
A Rhombus has four equal sides but not (necessarily) four equal angles.
A trapezoid (trapezium) has only 2 sides parallel and not all angles equal
It is not possible for a quadrilateral in Euclidean plane geometry to have no equal angles and still have its opposite sides parallel.It's possible for a quadrilateral to have no equal angles and two of its sides parallel (opposite ones, obviously; adjacent sides can't possibly be parallel). That would be a trapezoid.
The quadrilateral you are describing is a parallelogram. In a parallelogram, opposite sides are parallel and equal in length, but it does not necessarily have right angles; the angles can be acute or obtuse. Examples of such parallelograms include rhombuses and non-right-angled rectangles.
A trapezoid.
quadrilateral
A trapezium.
a rhombus, a quadrilateral without right angle, a quadrilateral with equal opposite parallel sides but no right angles
The quadrilateral described is a rectangle. In a rectangle, opposite sides are equal and parallel, and all four angles are right angles. This definition meets the criteria of having one pair of opposite sides that are equal and parallel, along with the presence of right angles.
All quadrilaterals apart from rectangles. Even parallelograms have adjacent angles that are not equal.
A square or maybe a rectangle as well would fit the given description