Quantum redactiones paginae "Radians (unitas)" differant
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m AristippusSer movit paginam Radian (unitas) ad Radians (unitas): Nomen vetus Latinitati repugnat |
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[[Fasciculus:Circle radians.gif|thumb]]
'''Radians''' (''n.'' -tis){{FD ref}}, vulgo '''radian''', breviter '''rad''', est [[mensura|unitas mensurae]] [[angulus|angulorum]] planorum. In omnibus [[circulus|circulis]] angulus 1 radiantis secat [[arcus|arcum]] cuius [[longitudo]] par est [[radius (geometria)|radii]] circuli <math>r</math>. Quoniam longitudo circuli radii <math>r</math> est <math>2 \pi r</math>, angulus plenus (360°) est, atque <math>2 \pi</math> rad; angulus rectus (quadrans anguli pleni, 90°) <math>\frac \pi 2</math> rad. 1
==Notae==
<references />
==Bibliographia==
* Mills, I. M. [[2016]]. "On the units radian and cycle for the quantity plane angle." ''Metrologia'' 53 (3): 991–97.
==Nexus interni==
*[[Systema polare coordinatarum]]
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