Name: Construction of Line Segment and a Circle
Uploaded: 2019-07-19
Duration: 3 min 34 s
Description: Ruler and compass are the tools in the construction of lengths, angles, and other geometric figures. This video explains how to use them to construct a line...

Question

Mark two points, A and B on your notebook. Join them, measure the length of AB. Now construct the following.

A line segment RS which is thrice AB.

Accepted Answer

A line segment is a part of a straight line.

The above figure shows a line segment PQ, which has two endpoints P and Q. PQ and QP both represent the same line segment. A line segment PQ is written as $\bar{PQ}$ .

Steps to draw 'A line segment CD equal to AB',

Mark points A and B on a piece of paper and join them as shown in figure.

Now place the ruler with its edge along AB to measure the length AB, such that the zero mark of the cm side of the ruler coincides the point A. Read the mark on the ruler, which corresponds to the point B. The value obtained on the ruler at point B is the length of AB i.e. AB $= 5.6 cm$

In order to construct the line segment three times A, construct a line l and mark a point R on it. Take a divider and open it such that the end-points of both of its arms are at A and B.

Now lift the divider and place one end-point at point at R and the other end-point on the line l and mark it as E.

Lift the divider and place one end-point at E and the other end-point on the line l, opposite to point R and mark it as F.

Lift the divider and place one end-point at F and the other end-point on the line l, opposite to R and mark it as S.

Mark two points, A and B on your notebook. Join them, measure the length of AB. Now construct the following.

A line segment RS which is thrice AB.

Important Questions on Lines Segments and Rays

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