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Who was its editor?​

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Answered by mercyy
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whose editor who is that it's??

Answered by sunilshukla7349
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For a measure of ionizing radiation, see Rad (unit). For other uses, see Radian (disambiguation).

The radian is the SI unit for measuring angles, and is the standard unit of angular measure used in many areas of mathematics. The length of an arc of a unit circle is numerically equal to the measurement in radians of the angle that it subtends; one radian is just under 57.3 degrees (expansion at OEIS: A072097). The unit was formerly an SI supplementary unit, but this category was abolished in 1995 and the radian is now considered an SI derived unit.[1]

Radian

Unit system

SI derived unit

Unit of

Angle

Symbol

rad or c 

In units

Dimensionless with an arc length equal to the radius, i.e. 1

m

/

m

Conversions

1 rad in ...

... is equal to ...

milliradians

1,000 milliradians

turns

1

/

turn

degrees

180

/

π

≈ 57.296°

gons

200

/

π

≈ 63.662g

An arc of a circle with the same length as the radius of that circle subtends an angle of 1 radian. The circumference subtends an angle of 2π radians.

The symbol rad can be used to represent the radian (for example, an angle of 1.3 radians would be written as 1.3 rad), but this is often omitted, especially in mathematical writing.

Definition

History

Unit symbol

Conversions

Advantages of measuring in radians

Dimensional analysis

Use in physics

SI multiples

See also

Notes and references

External links

Last edited 2 months ago by InternetArchiveBot

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