It depends on where you are. If in the USA, a trapezium has no parallel sides. For everywhere else, a trapezium has one set of parellel sides (which is called a trapezoid in USA).
A trapezium has only 1 pair of parallel lines.
A pentagon has no parallel lines.
Here are three shapes that have two pairs of parallel lines: square parallelogram rectangle There are many polygons with at least two pairs of parallel lines. hexagon (has 3 pairs of parallel lines) octagon (has 4 pairs) decagon (has 5 pairs)
0 pairs
up to four pairs is the answer
one
One pair.
It has a 1 pair of opposite parallel sides of different lengths
A trapezium has only 1 pair of parallel lines.
1
2
A diamond has two pairs of parallel lines.
It may have none. A trapezium (US) has no parallel sides. A trapezoid (US, known elsewhere as a trapezium) has one side of parallel sides.
it has 2 pairs of parallel lines
A regular dodecagon has six pairs of parallel lines.
A rhombus has 2 pairs of parallel lines.
it has too parallel lines!