13612042-n 'the unit of plane angle adopted under the Systeme International d'Unites';
 
Chinese (simplified) 弧度
英語 radian , rad
Indonesian radian
Italian radiante
日本語 ラジアン
Malaysian radian
Definitions
日本語
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)
英語
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
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Maintainer: Francis Bond <bond@ieee.org>