Question

how an unit is measured???​

Answer 1

Answer:

A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity. ... For example, a length is a physical quantity. The metre is a unit of length that represents a definite predetermined length

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Answer 2

Answer:

A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity. ... For example, a length is a physical quantity. The metre is a unit of length that represents a definite predetermined length.

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