Finding length of AB with ruler

6.jpg

We measure AB

& AB = 6.5 cm

But , there can be errors……..

 

We might have difficulty reading over the marks in the pointer

 

We can also have positioning error

 

Positioning error

Finding length via ruler - Part 2

If our eyes are not vertically on top of the object,

we may get errors due to angular viewing.

 

So, how do we get rid of such errors?

We use a divider.   

Finding length via ruler - Part 3                                                                   

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.