A diamond has two pairs of parallel lines.
A parallelogram has 2 pairs of parallel lines
It has two pairs of parallel lines so yeah
A square has 2 pairs of opposite parallel lines.
4 pairs
It has a pair of opposite parallel lines of different lengths
A trapezoid has only 1 pair of opposite parallel sides of different lengths
A diamond has two pairs of parallel lines.
A rhombus has 2 pairs of parallel lines.
it has 2 pairs of parallel lines
A regular dodecagon has six pairs of parallel lines.
it has too parallel lines!
A pentagon has no parallel lines.
A regular octagon has four pairs of parallel lines.
A square has 2 pairs of equal opposite parallel lines
A parallelogram has 2 pairs of parallel lines
A square has 2 pairs of parallel lines and they all are the same lenght