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Infinitely many.

Polygons with 6 or more sides can have 3 pairs of parallel lines.

Polygons with 7 or more sides can have a set of three parallel lines.

Q: How many polygons are there with 3 parallel lines?

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A square or rectangle has two sets of parallel lines. Stop signs technically have 4 short sets o parallel lines. Hexagon could have 3 sets, etc. All of which are polygons, though not all polygons have parallel lines.

2 parallel lines * * * * * The above answer is not wholly correct. A hexagon can have one, two or three pairs of parallel lines: a regular hexagon has 3 pairs.

2 parallel lines * * * * * The above answer is not wholly correct. A hexagon can have one, two or three pairs of parallel lines: a regular hexagon has 3 pairs.

In space with 3 or more dimensions, there are infinitely many pairs of lines that are not parallel and do not intersect.

Square, rectangle, rhombus

Related questions

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)

A square or rectangle has two sets of parallel lines. Stop signs technically have 4 short sets o parallel lines. Hexagon could have 3 sets, etc. All of which are polygons, though not all polygons have parallel lines.

There can be no convex polygon with three parallel sides. There are concave polygons with 6 or more sides that have three parallel lines.

it has 2 pairs of parallel lines

It has 1 set of 3 parallel lines and 3 sets of 2 parallel lines, and 18 angles (3 sides meet at each vertex)

If the hexagons are regular, it has 3 quartets of parallel lines and one 6-tuple of parallel lines. If the bases are irregular hexagons, it can have six pairs of parallel lines and one 6-truple.

3

3

2 parallel lines * * * * * The above answer is not wholly correct. A hexagon can have one, two or three pairs of parallel lines: a regular hexagon has 3 pairs.

There are no parallel sides in a right angle triangle

A rectangular prism has 3 sets of 4 parallel lines and 24 angles.