Last Updated
：2025/11/19
radian
IPA(Pronunciation)
Noun
Japanese Meaning
円の中心で、円弧の長さがその円の半径と等しい時に作られる中心角の大きさを示す、国際単位系における平面角の派生単位。記号：rad
（ plural ）
Quizzes for review
(geometry) In the International System of Units, the derived unit of plane angular measure of angle equal to the angle subtended at the centre of a circle by an arc of its circumference equal in length to the radius of the circle. Symbol: rad
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radian
When solving trigonometric limits, switching to the radian simplifies the computations and makes the results cleaner.
See correct answer
When solving trigonometric limits, switching to the radian simplifies the computations and makes the results cleaner.
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