Question

supplementary Unit are diminsonles but still have unit. why?​

Answer 1

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In October, 1980 the International Committee for Weights and Measures (CIPM) decided to "interpret the class of supplementary units in the International System as a class of dimensionless derived units for which the CGPM allows the freedom of using or not using them in expressions for SI derived units."

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Answer 2

It is also an incorrect option because “Supplementary units that are radian and steradian are dimensionless units. They are assumed standards and don't have a physical meaning they are separate from fundamental units.”

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