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SI supplementary unit

Until 1995, SI (International System of Units) supplementary units were:

QuantitySymbolName of SI supplementary unitSymbol for SI unit
solid angleΩsteradiansr

As of October 1995, the category of "supplementary units" has been abolished from the SI system of measurement, and the radian and the steradian are now considered SI derived units.

See also

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "SI_supplementary_unit". A list of authors is available in Wikipedia.
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