Question

what is radian? Please answer​

Answer 1

Answer:

✍️ Radian:- a unit of measurement of angle equal to about 57.3°,equivelent to the angle subtended at the centre of circle by an arc equal in length to the radius.

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Answer 2

$\huge\mathcal\color{teal} Answer :-$

Radian is another unit for measurement of an angle. The radian is the standard unit of angular measure, used in many areas of mathematics. An angle's measurement in radians is numerically equal to the length of a corresponding arc of a unit circle; one radian is just under 57.3 degrees 

For example :- angle subtended at the centre by an arc of length 1 unit in a unit circle is said to have a measure of 1 radian.

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