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What is the meaning of straight line?
A straight line is one which travels in exactly one direction, never bending or curving.
Can non straight lines be parallel?
No, they have to be straight. --------------------------- ------------------ Those are parallel lines because they are straight. In geometry, a non-straight line has no meaning. It is allowed that arcs, planes and such can be parallel. In common usage, a twisting and turning line can be described as parallel to another, such as the rails of a railroad track, even though they are not co-planar or straight. It may not be proper by geometric definition but it is descriptive and conveys the meaning adequately.
What does as straight as a board mean?
The more common idiom is "stiff as a board," meaning "very stiff." Unless used ironically, like "straight as a crooked stick" or "straight as a politician's promise," the expression "straight as a board" would mean "very straight." When referring to "straight as..........." the term usually is as straight as a die
What is the meaning of collinear points?
Collinear points are points on the same straight line.
What is a word meaning a straight path between two endpoints?
a line segment
