The part of a line that connects two points.

It is the shortest distance between the two points.

It has a length.

Adding the word "segment" is important, because a line normally extends in both directions without end. But a line segment has definite end points.

Try moving points "A" and "B":

It is the shortest distance between the two points.

It has a length.

Adding the word "segment" is important, because a line normally extends in both directions without end. But a line segment has definite end points.

Try moving points "A" and "B":

See: Line

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