a square
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.
A square or maybe a rectangle as well would fit the given description
square
a rhombus, a quadrilateral without right angle, a quadrilateral with equal opposite parallel sides but no right angles
a square
I am a rectangle.
It is a quadrilateral whose opposite sides are parallel and has no right angles
the answer is a rhombus the answer is a rhombus
A parallelogram is a quadrilateral whose opposite sides are parallel and has no right angles
A square or maybe a rectangle as well would fit the given description
square
a rhombus, a quadrilateral without right angle, a quadrilateral with equal opposite parallel sides but no right angles
a square
rectangle
A rectangle
rhombus
A square