### Theory:

A specific position or location on the surface of the plane is referred to as a point.

The above figure shows point $$A$$ and $$B$$.

A point is an invisible dot that may determine a location/position but can't be extended. To represent the location/position, we label each point using an English alphabet.
Example:
We are planning to locate the five-place (let them be $$A$$, $$B$$, $$C$$, $$D$$ and $$E$$) on a map using the concept of points and label them accordingly.
When a line is drawn between the two points, it is referred to as a line segment.

The above figure shows a line segment $$AB$$ and is represented as $\overline{\mathit{AB}}$.

Important!
A line segment is used to determine the distance between two points.
Example:
We are planning to demonstrate the distance between the five places (let them be $$A$$, $$B$$, $$C$$, $$D$$ and $$E$$) on a map using the concept of a line segment and label them accordingly. Here the distance between $$A$$ and $$B$$ is shown by drawing a line between $$A$$ and $$B$$. Similarly, the distance between $$B$$ and $$E$$, and the distance between $$C$$ and $$D$$ are shown in the following picture.