A line pair refers to a set of two lines that are used in various contexts, such as in Photography, optics, or design. In photography, it often pertains to the two lines that define the boundaries of an image or frame. In optics, line pairs can refer to a measurement of resolution, where they indicate the ability of an imaging system to distinguish between two closely spaced lines. Overall, line pairs serve as a fundamental concept in analyzing visual clarity and spatial relationships.
A line can be leased as either a 2-wire (1-pair) line or a 4-wire (2-pair) line. A 2-pair line uses 1 pair to transmit and 1 pair to receive. With a 1-pair line, you transmit and receive over the same pair of wires.
perpendicular line
Line segment
I suppose they could be called a pair, just like two horizontal lines could be called a pair, but it's not a "mathematical" or "technical" term.
The edge of a tetrahedron is the line where any pair of its faces meet. Equally, it is the line joining any pair of its vertices.
A line can be leased as either a 2-wire (1-pair) line or a 4-wire (2-pair) line. A 2-pair line uses 1 pair to transmit and 1 pair to receive. With a 1-pair line, you transmit and receive over the same pair of wires.
Which pair. Of line is parallel fghj
There is no specific name - other than what you used: "a pair of parallel line segments".
perpendicular line
Line segment
line up
A pair of perpendicular line segments is not shown among the pictures you've submitted.
I suppose they could be called a pair, just like two horizontal lines could be called a pair, but it's not a "mathematical" or "technical" term.
The edge of a tetrahedron is the line where any pair of its faces meet. Equally, it is the line joining any pair of its vertices.
1 pair of parallel line
A cross is a pair of intersecting lines.
A plus sign (+) would be a pair of perpendicular line segments.