A regular 6 sided hexagon has 3 pairs of parallel sides
A parallelogram is a four sided shape where opposite sides are parallel and equal lengths. If you mean that ALL sides are equal lengths, you are looking for a rhombus.
A trapezoid.
An isosceles trapezium.
The shape you are describing is a parallelogram. In a parallelogram, the opposite sides are parallel and have equal lengths. Examples of parallelograms include rectangles, rhombuses, and squares.
A rectangle has four sides with two equal lengths.
A quadrilateral as described is a parallelogram. If the angles between the two sets of parallel lines are 90 degrees, the shape is a rectangle, a special form of parallelogram.
A quadrilateral
Trapezoid
retangle
An isosceles trapezoid is a 4 sided quadrilateral that has 1 pair of opposite parallel sides of different lengths and has 2 equal diagonals plus equal base angles.
It is an 8 sided shape with 8 equal lengths
A trapezoid has only one pair of parallel sides of different lengths.