square
A trapezoid has 4 sides, 2 right angles and 1 pair of parallel lines
A shape that has 2 right angles, only 1 set of parallel sides, and no lines of symmetry is a right trapezoid (or right-angled trapezium). In this trapezoid, the two non-parallel sides are not equal in length, contributing to the lack of symmetry. The right angles are formed between one of the parallel sides and one of the non-parallel sides.
square and rectangles are technicality squares
Pentagon
An isosceles trapezoid would seem to fit the given description.
trapezoid
A trapezoid has 4 sides, 2 right angles and 1 pair of parallel lines
square and rectangles are technicality squares
a tetrahedon
trapazoid
Pentagon
A shape with parallel sides but no right angles is called a parallelogram
An isosceles trapezoid would seem to fit the given description.
There is no shape that has sides that are all parallel to each other. That would just be a collection of straight lines.
A square.
A right trapezium.
A trapezoid perhaps?