Question

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which are supplementary units ?​

Answer 1

Explanation:

Dimensionless units that are used along with base units to form derived units in the International System; this class contains only two, purely geometrical units: the radian and the steradian.

Answer 2

Answer:

the physical quantity which is not depending on other physical quantity and is other than fundamental quantity.Supplementry physical quantity is also known as secondary physical quantity.It divided into two types I.e. 1.plane angle. 2.solid angle.