# Program to Convert Radian to Degree

Before moving to the actual solution, let’s try to find out what is a degree, a radian, and their relations.

Radian : The radian 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.

Degree : A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of a plane angle, defined so that a full rotation is 360 degrees.

The relation 2pi*rad = 360° can be derived using the formula for arc length.
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 2pi radians.
Therefore the formula is:

```degree = radian * (180/pi)
where, pi = 22/7
```

Examples:

```Input : radian = 20
Output : degree = 1145.4545454545455
Explanation: degree = 20 * (180/pi)

Output : degree = 286.3636363636364
Explanation : degree = 20 * (180/pi)
```

## Recommended: Please try your approach on {IDE} first, before moving on to the solution.

Note: In this programs, we have taken the value of pi as 3.14159 to get standard result in all three languages.

## C/C++

 `// C code to convert radian to degree ` ` `  `#include ` ` `  `// Function for convertion ` `double` `Convert(``double` `radian){ ` `    ``double` `pi = 3.14159; ` `    ``return``(radian * (180/pi)); ` `} ` ` `  `// Driver Code ` `int` `main(){ ` `    ``double` `radian = 5.0; ` `    ``double` `degree = Convert(radian); ` `    ``printf``(``"%.5lf"``, degree); ` `    ``return` `0; ` `} `

## Java

 `// Java code to convert radian to degree ` ` `  `import` `java.io.*; ` `class` `GFG { ` `    ``// Function for convertion ` `    ``static` `double` `Convert(``double` `radian){ ` `        ``double` `pi = ``3.14159``; ` `        ``return``(radian * (``180``/pi)); ` `    ``} ` `    ``// Driver Code ` `    ``public` `static` `void` `main (String[] args) { ` `        ``double` `radian = ``5.0``; ` `        ``double` `degree = Convert(radian); ` `        ``System.out.println(``"degree = "``+ degree); ` `    ``} ` `} `

## Python3

 `# Python code to convert radian to degree ` ` `  `# Function for convertion ` `def` `Convert(radian): ` `    ``pi ``=` `3.14159` `    ``# Simply used the formula ` `    ``degree ``=` `radian ``*` `(``180``/``pi) ` `    ``return` `degree ` ` `  `# Driver Code ` `radian ``=` `5` `print``(``"degree ="``,(Convert(radian))) `

Output:

```286.47914
```

## C#

 `// C# code to convert radian to degree. ` `using` `System; ` ` `  `class` `GFG { ` ` `  `    ``// Function for convertion ` `    ``static` `double` `Convert(``double` `radian){ ` `        ``double` `pi = 3.14159; ` `        ``return``(radian * (180 / pi)); ` `    ``} ` ` `  `    ``// Driver Code ` `    ``public` `static` `void` `Main () { ` `        ``double` `radian = 5.0; ` `        ``double` `degree = Convert(radian); ` `        ``Console.Write(``"degree = "` `+ degree); ` `    ``} ` `} ` ` `  `// This code is contributed by Nitin Mittal. `

## PHP

 ` `

Output :

```286.47914
```

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Improved By : nitin mittal

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