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.
Yes, it has sides that are straight line segments. Exactly one pair of opposite sides is parallel. Polygons do not have curved sides.
Each of the eight line segments is perpendicular to 2 line segments. So there are 8 pair in all.
1 pair of parallel lines
The answer is that the parallel lines extend infinitely in both directions, and the line segment has two endpoints.
There is no specific name - other than what you used: "a pair of parallel line segments".
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.
Exactly one pair.
Pair of radii
The letter - H
Yes. (Ex. a trapezoid)
name one pair of perpendiclur line segments?
A trapezoid has 1 pair of opposite parallel lines of different lengths.
A pair of perpendicular line segments is not shown among the pictures you've submitted.
Yes, it has sides that are straight line segments. Exactly one pair of opposite sides is parallel. Polygons do not have curved sides.
Technically, lines are continuous, so parallelograms are actually composed of line segments. The line segments composing the sides of the parallelogram, come in two pairs in 2D space. Each pair is composed of two line segments that are parallel to each other, but do not occupy the same line. The two pares of line segments must all meet to then form a quadrilateral.
One pair of opposite sides: they may be top and bottom or two sides, or they could both be skew.