For a shape to have parallel sides it needs at least 4 sides
A trapezoid is a shape that has 4 sides and 2 parallel sides. The sides that are parallel are called the bases.
That would be a trapezoid.
trapezium
A rhombus
A trapezium.
trapezoid
A trapezium.
An irregular quadilateral has no 2 parallel sides . A trapezium has a par of parallel sides , which means that it HAS two parallel sides.
If it has four equal sides, then two parallel sides implies two PAIRS of parallel sides. The shape is a rhombus.
trapezoid
Trapezium