A decagon has 10 sides. Any regular polygon with four or more sides will have pairs of sides that are parallel. A decagon will have 5 pairs of parallel sides.
A triangle can have no parallel lines.
A pentagon has no parallel lines.
it has too parallel lines!
A cone does not have any parallel lines
how many sets of parallel lines are in a triangle
A square has 2 pairs of opposite parallel lines.
A cube has exactly 6 parallel lines.
A cube has exactly 6 parallel lines.
2 pairs of parallel lines
There are 2 sets of parallel lines.
A parallelogram has two pairs of parallel lines.
An octagon had four pairs of parallel lines.