Both pairs of opposite sides need to be congruent (the same length).
A rhombus (4 congruent sides, diagonals perpendicular)that is not also a square (no right angles), andis also a parallelogram (opposite sides parallel and congruent, opposite angles congruent). It is also a quadrilateral, which has 4 sides.
Squares, rectangles, parallelograms and rhombuses have 2 pairs of parallel sides. The trapezoid has only 1 pair of parallel sides.
A quadrilateral with congruent pairs of adjacent sides and no parallel sides is a kite.
A parallelogram has two pairs of congruent sides.
A kite or chevron.
That's a parallelogram.
It is a rectangle.