What is Line segment?
This is a line! It has no endpoints and extends endlessly in both directions.
If you mark two points A and B on it and pick this segment separately, it becomes a line segment.
This line segment has two endpoints A and B whose length is fixed. The length of this line segment is the distance between its endpoints A and B.
So, a line segment is a piece or part of a line having two endpoints. Unlike a line, a line segment has a definite length.
The length of a line segment can be measured either in metric units such as millimeters, centimeters, or customary units like feet or inches.
Measuring a line segment
Follow the given steps to measure the length of a line segment:
Step 1: Pick up a scale to measure the length of a line segment. Generally smaller line segments are measured using a centimeter scale.
Step 2: Identify the line segment you want to measure.
Step 3: Place the tip of the ruler at the starting point of the line segment.
Step 4: Read the number on the scale where the line segment ends. In this case, it is 5. So, the length of the given line segment is 5 cm.
Drawing a line segment using ruler and compass
Suppose we need to draw a line segment of length 5 cm. We will follow the given steps:
Step 1: Draw a line of any length. Mark a point A on the line, which is the starting point of the line segment.
Step 2: Using a ruler, place the pointer of the compass 5 cm apart from the pencil’s lead.
Step 3: Place the pointer of the compass at A and mark an arc on the line with the pencil point.
Step 4: Mark the point where the arc and the line intersect as B.
Step 5: AB is the required line segment of length 5 cm.
Real life example
Sides of a polygon, edges of a ruler, edges of a paper are all examples of a line segment
Fun Facts about line segment