Question

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We used as a standard unit of length ?
Q. 3. Why can a pace or a footstep not be
We cannot use pace or a footstep as​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer and explanation: It is because a pace or a footstep of each and every person is not equal. They may vary in size, which caused confusion and incorrect measurements and a need to get a new measuring system which is correct emerged, which is now so called SI units, which is accepted by the world internationally.