Question

Draw a line in your notebook and name it using a small letter of the alphabet.

Answer 1

Hint: First draw a line using the scale and name it with any letter and then take any two points on the line and also name them with any letters for the notation.

Complete step-by-step answer:
In geometry, the notation of line or straight line was introduced by ancient mathematicians to represent straight objects (i.e. having no curvature) with negligible width and depth. Lines are an idealization of such objects. Which are often described in terms of two points (e.g. $ AB $ ) or referred to using a single letter (e.g. $ i $ ).
In modern mathematics given the multitude of geometrics, the concept of a line is closely tied to the way the geometry is described. For instance, in analytic geometry, a line in the plane is often defined as the set of points whose coordinates satisfy a given linear equation, but in a more abstract setting, such as incident object, distinct from the set of point which lie on it.
Let us draw a line with the help of the value, on the plane and name it $ l $ as shown below,

As this is a line it can be stretched infinitely from both the ends.
Now we need to show two points on the line, so let’s name them $ a $ and $ b $ as shown.

We can take these points anywhere on the lines and name them by any letter.

Note: There are four types of lines.
Horizontal line
Vertical line
Perpendicular line
Parallel lines.
Here we should be careful while drawing as its line needs to show both the sides, as the line can be stretched from both the ends.