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abstraction > mathematical concept > unit > non SI unit > second (angle) |
second (angle) comparison table |
Subject | has value in SI unit | is an instance of | is a kind of | has symbol | has synonym | has definition |
---|---|---|---|---|---|---|
non SI unit | unit | not an SI unit, but an important and widely used unit | ||||
second (angle) | (1/60)' = (π/648000) rad | non SI unit | " | arc second |
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