line AB, Ray AB, line segments AB, It does not have any endpoint. The two arrows at each end signify that the line extends endlessly and is unending in both directions. The length of a line cannot be measured. - Line, it is a part of a line that has a fixed starting point but no endpoint  - Rays, is a line section that can link two points. - Line segment , Line Segment - [], Ray - [), Line - (), (AB) - Line AB,

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