yes it does it has four
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An octagon had four pairs of 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)
It can, but it need not.
It can have 2 parallel sides, but it need not have any.
A regular octagon has 8 lines of symmetry.