A radian is a unit of measuring angles. It is shown by the symbol "rad" or, less often, c (for circular measure). The radian was once an SI supplementary unit, but was changed to a derived unit in 1995.
Usage[change | change source]
Most people who do mathematics or physics use radians, rather than degrees, because some kinds of calculations, mostly in trigonometry and calculus, are simpler when using radians rather than degrees. Thus, most calculations related to angular frequency (such as angular velocity) use radians per second.
Conversion[change | change source]
we can also say that:
Related pages[change | change source]
References[change | change source]
- "List of Geometry and Trigonometry Symbols". Math Vault. 2020-04-17. Retrieved 2020-08-31.
- "Radian - math word definition - Math Open Reference". www.mathopenref.com. Retrieved 2020-08-31.
- Weisstein, Eric W. "Radian". mathworld.wolfram.com. Retrieved 2020-08-31.