Question

what is radian.....tell​

Answer 1

The radian is equivalent to the angle subtended at the centre of a circle by an arc equal in length to the radius, which is always about 57 degrees. Mathematically to find the angle subtended by an arc : (Angle subtended by arc)/360 = Arc length/ (2(π)(r))

Answer 2

Answer:

Unit of measurement of angles equal to about 57.3°, equivalent to the angle subtended at the centre of a circle by an arc equal in length to the radius.