Check sibling questions

Finding length of AB with ruler


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 is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.