Question

Radian(rad)is unit of​

Answer 1

Answer:

The length of an arc of a unit circle is numerically equal to the measurement in radians of the angle that it subtends

Explanation:

Hope it helps..

Answer 2

Radian is the SI unit of Angle (i.e., the sexagesimal system of measurement of angles).

It is represented by :

$\theta ^{c} \: \: or \: \: \theta ^{r} \: \: or \: \: \theta rad$

$\theta ^{c} = l/r$

where, l is the length of arc and r is the radius of the circle