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# Difference Between Line And Line Segment

The key difference between line and line segment is, a line is extended in both directions infinitely but a line segment has two endpoints. In the elementary level geometry, the term that every student comes across is ‘line’.

A line is a simple geometric shape that extends in both the directions, but a line segment has two defined endpoints. Both the figures are also different from a ray, as a ray has only one endpoint and extend infinitely in one direction.

It is significant for the students to comprehend the contrast between these two terminologies. This article is a quick reckoner guide of what are the differences between line and a line segment.

## Definition of Line and Line Segment

Line: A line is a one-dimensional geometrical figure. It is defined as a straight, long, and a continuous path that is represented using the arrowheads at both directions. It extends in both the directions.

Line Segment: A line segment is a straight line that passes through the two points. A line segment has a definite length. The shortest distance between two points can be measured with the help of a ruler. It has length, but it does not have a width and depth.

## What is the Difference Between Line and Line Segment?

It is a basic fundamental aspect for all the students of the elementary level to understand the variances between these both terms. Below mentioned are a few differences.

 Line Line Segment The line doesn’t have an endpoint. While the line segment has two endpoints. A line extends in both the directions As the line segment has the start and endpoint, it does not extend in both the directions. It does not have a start and endpoint It has start and endpoint The length of the line cannot be measured The length of the line segment can be measured Many students have a question if a line can be drawn on a sheet of paper. And, the answer to that question is ‘No’. ‘Yes,’ a line segment can be drawn on a sheet of the paper. As mentioned earlier in the first point, that the line doesn’t possess an endpoint. The length of a line is indefinite. As mentioned in the first point, a line segment comprises of two endpoints. The length is definite. A line can be comprehended as a boundless, straight, continuous and a long path. A line segment is a tiny part of a section of the line. The line is represented as – AB and a horizontal line with arrow marks above the AB, i.e. $$\begin{array}{l}\overleftrightarrow{AB}\end{array}$$ Whereas, the line segment is denoted as – AB and a horizontal line above the AB, i.e. $$\begin{array}{l}\overline{AB}\end{array}$$

Concisely, a line is defined as a 1-dimensional geometric shape which extends infinitely in both the directions. At the same time, a line segment is defined as, the figure that possesses two endpoints. To know more, visit BYJU’S – The Learning App.

## Frequently Asked Questions – FAQs

### What is the line?

A line is a one-dimensional figure which is extended infinitely in both the directions. It is represented by a straight line with two arrowheads. It has only one dimension, i.e. length.

### what is a line segment?

A line segment is a type of line which is defined between two distinct endpoints. Each point on the line segment between these two endpoints belongs to it.

### What is the line ray?

A ray is a line which has one endpoint and the other side of the line extends indefinitely. It is represented by one endpoint and another end by an arrowhead.

### What is the difference between a line and a point?

A line has one dimension which is the length and a point is a dimensionless quantity. A line is represented by a straight line and a point is denoted by a dot.