Radian

What is Radian?


1.

a unit used to measure angles. 1 radian is the angle in a unit circle where the radius is equal to the arc. since pi radians=180 degrees, radians are usually expressed in terms of pi.

This angle measures pi/2 radians(90 degrees).

1.

a unit used to measure angles. 1 radian is the angle in a unit circle where the radius is equal to the arc. since pi radians=180 degrees, radians are usually expressed in terms of pi.

This angle measures pi/2 radians(90 degrees).


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