Table of Contents
Table of Contents
- Construction of a Line Segment
- Using Ruler
- Using Ruler and Compass
- Construction of Copy of a Line Segment
- What’s Next?
In the previous segment, we learnt how to construct a circle using a given radius. In this segment, we will learn how to construct a line segment and its copy.
How to construct a line segment?
We will look at two ways to construct a line segment of a given length, for example, line segment AB of 4.5 cm.
Constructing a line segment using a ruler
Step 1: Place a ruler on a paper and mark 2 points, A, at the 0 cm mark and B, at the 4.5 cm mark.
A
B
Step 1
Step 2: Join points A and B.
A
B
Constructing a line segment using this method is not foolproof as it can result in positioning error while using the ruler.
Positioning error
The next method overcomes this problem.
Constructing a line segment using a ruler and a compass
Step 1: Draw a line l and mark a point A on it.
Step 1
Step 2: Place the pointer of the compass on the 0 mark of the ruler and extend the pencil end till the 4.5 cm mark.
