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Can a triangle have one pair of parallel sides? Explain plis

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a triangle can never have a pair of parallel sides because you would have to use two more lines to connect the parallel lines, which makes the figure have four sides, while to be classified as a triangle, it may only have 3 sides.
User Dariusz Rusin
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Triangles have to be made of line segments that are not parallel to each other.
User Moshe Levi
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