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Thus 2 radians equals 360 degrees. This means that 1 radian = 180/ degrees, and 1 degree = /180 radians. The reason for this is that so many formulas become much easier to write and to understand when radians are used to measure angles. A very good example is provided by the formula for the length of a circular arc.
1. Know that Ï radians is equal to 180 degrees. Before you begin the conversion process, you have to know that Ï radians = 180Â°, which is equivalent to going halfway around a circle. This is important because you'll be using 180/Ï as a conversion metric.This is because 1Ï radians is equal to 180/Ï degrees.Ad.efore you begin the conversion process, you have to know that Ï radians = 180Â°, which is equivalent to going halfway around a circle. This is important because you'll be using 180/Ï as a conversion metric. This is because 1Ï radians is equal to 180/Ï degrees. Ad.