To Measure the Length of a Line-segment

Here we will learn to measure the length of a line-segment.

Let there be a line-segment AB.

We have to measure its length.

To Measure the Length of a Line-segment

The scale is placed along the line-segment putting its zero (0) mark at A. We see the end B is at the 3 cm mark of the scale. So the length of the line-segment AB = 3 cm. 

To draw a line-segment of a given length say;

(i) 6 cm,

(ii) 6 cm 5 mm,

(iii) 8 cm 6 mm


(i) 20 cm scale is placed flat on the paper.

A point A is marked in front of the zero mark of the scale. Now in front of the 6 cm mark, another point B is marked. A line-segment AB is drawn from A to B.

Now the scale is removed.

Line-Segment

AB is the required line-segment.


(ii) Similarly the. line-segments of length 6 cm 5 mm and 8 cm 6 mm are drawn. (Try to draw to draw the line)



Related Concepts

Units for Measuring Length

Measuring Instruments

To Measure the Length of a Line-segment

Perimeter of a Figure

Unit of Mass or Weight

Examples on Unit of Mass or Weight

Units for The Measurement of Capacity

Examples on Measurement of Capacity

Measurement of Time

Read a Watch or a Clock

Antemeridian (a.m.) or Postmeridian (p.m.)

What Time it is?

Time in Hours and Minutes

24 Hour Clock

Units of Time

Examples Units of Time

Time Duration

Calendar

Reading and Interpreting a Calendar

Calendar Guides us to Know










4th Grade Math Activities

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