A polygon which has 3 line segments is a triangle. Either Isoceles, scalene, or an equilateral triangle with occur.
There can be no convex polygon with three parallel sides. There are concave polygons with 6 or more sides that have three parallel lines.
A trapezoid or, in Britain, a trapezium. Other than in Britain, a trapezium is a quadrilateral with no parallel sides at all.
parallelogram
They can not be line segments on the same line, but they can both be line segments.
Driver: Parallel Lines Cheat Codes
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