Question

Here we observe that 4 handspans of the seller = 7 handspans of Rani.
Why is there such a difference in measurement?
There is difference between the measurement because the palm of the seller is bigger
than the palm of Rani.
Look at the following units of measuring length:




class 3 math what id measurement of leanth

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Answer 1

because handspan of a man is bigger than a child so it is not termed as standard unit of measurement because it varies from person to person but unit such as metre is fixed thats why it is SI unit of measurements