state any three precautions to be taken while measuring the length of an object by using a ruler?
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Explanation:
Care should be taken to keep the ruler along the lenght of the object.
Care should be taken to keep the ruler along the lenght of the object.If the edge of the ruler is worn out or broken, the measurement should be srarted from any other mark that is fully clear. ...
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Answer:
Zero error must be checked
Ruler marking has to be checked
Marking on the paper or worksheet must be clear
Explanation:
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