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Converting angles to radians

2022-08-09 23:13:00 【Silly Child: CPU】

Conversion between degrees and radians

You can measure angles using either degrees or radians.

The angle corresponding to the arc length equal to the radius is 1 radian.
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Usually the unit with ° is angle, and the radian without unit.
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Conversion between radians and angles
Using similarityprinciple.The ratio of the circumference angles is equal to the ratio of the arc lengths.
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The arc second, also known as arc second, is the unit for measuring angle, namely arc minute1/60th of , the symbol is ". When there is no confusion, it can be abbreviated as second. The word "arcsecond" is only used to describe the angle, and cannot be used in other cases where the unit is "second" (such astime).
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