what is the difference between a line, a line segment and a ray

what is the difference between a line, a line segment and a ray

Though everyone knows intuitively what a line is, it’s truly troublesome to offer an excellent mathematical definition. Roughly, we are able to say {that a} line is an infinitely skinny, infinitely lengthy assortment of factors extending in two reverse instructions. Once we draw strains in geometry, we use an arrow at every finish to indicate that it extends infinitely.

Lines, Segments, and Rays

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A line might be named both utilizing two factors on the road (for instance, A B ↔ ) or just by a letter, often lowercase (for instance, line m ).

A line phase has two endpoints. It incorporates these endpoints and all of the factors of the road between them. You possibly can measure the size of a phase, however not of a line.

A phase is called by its two endpoints, for instance, A B ¯ .

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A ray is part of a line that has one endpoint and goes on infinitely in just one route. You can’t measure the size of a ray.

A ray is called utilizing its endpoint first, after which some other level on the ray (for instance, B A → ).

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