Up to 12 pairs.
None. Since the number of sides is odd, there can be no parallel sides.
It can have anywhere between 0 and 12 pairs of parallel sides.
A 25-sided shape would have no parallel sides !
65
How many parallel sides has a trapezium?
0 Parallel sides
A pentagon has no parallel sides.
It Has 2 Pair of Parallel Sides
yes 2 parallel sides
A triangle has no parallel sides.
a pentagon has no parallel sides
It has three parallel sides. ;)