That shape would be a trapezoid.
A trapezium (has only one pair of unequal parallel lines).
its a shape
A trapezoid has 4 sides, 2 acute and 2 obtuse angles, and only one pair of parallel sides
It is a trapezoid and its other 2 angles are obtuse and acute
An isosceles trapezoid would seem to fit the given description.
A shape with no right angles and one pair of parallel lines would be called a trapezoid in the USA, and a trapezium in Britain.
A shape that has exactly 4 sides, 2 right angles and one pair of parallel sides is a rectangle. ~T