A kite or a parallelogram, depending on whether the equal sides are adjacent to, or opposite one another.
A quadrilateral has four sides that may or may not be equal or parallel If two sides are parallel and the other sides equal but not parallel it is a trapezoid
paralellogram
An isosceles trapezium.
An isosceles trapezium.
I call it a [non-isosceles] trapezium, but those on the other side of the pond call it a [non-isosceles] trapezoid. If no sides are equal, it is called scalene trapezoid
a trapezoid is the only quadrilateral that has exactly 1 pair f parallel sides.
isoisole trapzoid
A trapezoid
That quadrilateral is known as a 'parallelogram'.
A kite has two pairs of equal sides with no parallel sides.
a Trapezoid
trapezium