There is no specific name - other than what you used: "a pair of parallel line segments".
A circle.
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First, lines and rays cannot be congruent because they do not have both end points defined. Not having an end point define means we cannot talk about their length so they can't be congruent. Line segments, however, can be congruent. Congruent line segments NEED NOT be parallel.Furthermore, if two line segments are parallel, that does not mean they are congruent since parallel line segments may not have the same length.Congruent line segments would be ones that are the same length.
A square has two sets of parallel line segments. "Parallel" does not describe a square, however.
There are more than two: A parallelogram has two sets of parallel line segments which may be of unequal length; A rectangle is a parallelogram that has line segments that meet at right angles; A rhombus has to sets of parallel line segments which are all of the same length; A square is a rhombus which has line segments meeting at right angles, or stated differently a square is a rectangle which has all line segments of the same length.
They can not be line segments on the same line, but they can both be line segments.
There is no specific name - other than what you used: "a pair of parallel line segments".
Letters that have parallel line segments are H, E, F, M, and N
how many pairs of parallel line segments does a stop sigh have
Which pair. Of line is parallel fghj
they are not parallel
a line that equals to my BEEP
No but it does have parallel line segments of different lengths and 1 line of symmetry
Many polygons, such as squares, rectangles, rhombi, parallelograms, etc. have more than 1 pairs of parallel line segments. Trapezoids have only 1 pair of parallel line segments. These few shapes are just quadrilaterals, other polygons also have more than 1 pair of parallel line segments (e.g. regularhexagons, octagons, etc.). Triangles never have any parallel line segments.
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