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Rad.
noun
Definitions
1.
noun
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
Synonyms
radian
grad
angle
milliradian
cir.
radius
arcdegree
arctan
degree
straight angle
gradian
radius vector
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