1 rad = 180/pi degrees = 180/3.14159 = 57.3 degrees
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A radian is simply a measurement unit. The relation between a radian and real numbers is similar to the relation between a degree and real numbers or a metre and real numbers.
1 degree = pi*radian/180 So therefore 15 times pi*radian/180 = pi*radian/12
You want to change radian to degrees. To change radian to degree, multiply the radian by 180 and divide by PI, where PI=3.14159. For example 2 radians = 2 (180)/3.14159 = 114.59 degrees.
it is used as an degree. It is an unit of angle.
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