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Measuring Instruments

  • Now we use International system of units (SI) is used as standard units all over the world.
  • Metre (m) is the SI unit of length.
    • 1m = 100 cm = 1000 mm and  
  • In our daily life we use various types of measuring devices such as metre scale, measuring tape, metre rod etc.   
  • The use of a measuring instrument depends on the nature of object and the type of surface of object.
  • The length of a curved line can be measured with the help of a thread b…

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