Units of measurement
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Gon
Radiant
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Gon
A gradian (gon) is a unit of angular measurement used in some engineering and geodetic calculations. A full circle is divided into 400 gradians, making it convenient for decimal calculations.
Radiant
The radian is the base unit of angular measurement in the International System of Units (SI). One radian corresponds to an angle where the arc length is equal to the radius of the circle. A full circle contains 2π radians (approximately 6.283 radians).