Radian and degree
- The angle produced by a unit arc in the center of the circle is called a radian.
- A degree, usually denoted by °, is a measurement of a plane angle in which one full rotation is 360 degrees.
- radian = and
Conversion of radian into degree
radian =
⇒ 1 radian =
⇒ 1 radian = degree.
Hence, 1 radian is equal to 57.3 degree.