The radian, denoted by the symbol rad, is the unit of angle in the International System of Units (SI) and is the standard unit of angular measure used in many areas of mathematics. It is defined such that one radian is the angle subtended at the centre of a circle by an arc that is equal in length to the radius. [2]

The rad is a unit of absorbed radiation dose, defined as 1 rad = 0.01 Gy = 0.01 J/kg. [1] It was originally defined in CGS units in 1953 as the dose causing 100 ergs of energy to be absorbed by one gram of matter.

1 radian is about 57.2958 degrees. Why "57.2958..." degrees? Let's discover why. and wrap it round the circle. Let's see why 1 radian equals 57.2958... degrees (press play): In a half circle …

1 radian to degrees measures 57.296° and 1° equals 0.017453 radians. The conversion of radians to degrees can be done using the formula 'Angle in Radians × 180°/π = Angle in Degrees'.

One radian is equal 57.295779513 degrees: The angle α in degrees is equal to the angle α in radians times 180 degrees divided by pi constant: or. Convert 2 radians angle to degrees: …

用弧长与半径之比度量对应圆心角角度的方式，叫做弧度制，用符号rad表示，读作弧度。 等于半径长的圆弧所对的圆心角叫做1弧度的角。 由于圆弧长短与圆半径之比，不因为圆的大小而改变，所以弧度数也是一个与圆的半径无关的量。 角度以弧度给出时，通常不写弧度单位。 另外一种常用的度量角的方法是角度制。 弧度制的精髓就在于统一了度量弧与角的单位，从而大大简化了有关公式及运算，尤其在高等数学中，其优点就格外明显。 参考资料： 弧度制-百度百科. 角度 …

Convert radians to degrees (rad to °) with the angle conversion calculator, and learn the radian to degree formula.

A radian is a measurement of angle based on the radius of a circle. 1 radian is the angle that is subtended by an arc that has a length equal to the radius of the circle. In the figure below, θ=1 radian.

Instant free online tool for radian to degree conversion or vice versa. The radian [rad] to degree [°] conversion table and conversion steps are also listed. Also, explore tools to convert radian or degree to other angle units or learn more about angle conversions.

Convert 1 Radians to Celsius (rad to °C) with our conversion calculator and conversion tables. To convert 1 rad to °C use direct conversion formula below. 1 rad = 57.3 °C. You also can convert 1 Radians to other Angle (popular) units.