13612042-n 'the unit of plane angle adopted under the Systeme International d'Unites';
 
Chinese (simplified) 弧度
English radian , rad
Indonesian radian
Italian radiante
Japanese ラジアン
Malaysian radian
Definitions
Japanese
国際単位系で採用されている平面角の単位
半径の長さに等しい1つの弧形に対応する円の中心での角度に等しい(約57.295度)
English
the unit of plane angle adopted under the Systeme International d'Unites
equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees)
Relations
Hypernym: angular_unit
Meronym–Part: milliradian
Semantic Field: quantityn
External Links

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Maintainer: Francis Bond <bond@ieee.org>