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# Program to convert Degree to Radian

• Last Updated : 26 Feb, 2021

Given the angle in degree, the task is to convert this into radians.
Examples:

```Input: degree = 45

Input: degree = 58

Approach:
Radian: The Radian is the SI unit for measuring angles, used mainly in trigonometry. A radian is defined by an arc of a circle. A full circle is just over 6 radians (Roughly 6.28). One radian is just under 57.3 degrees.
Degree: A degree, usually denoted by ° (the degree symbol), is a measurement of a plane angle, defined so that a full rotation is 360 degrees. Because a full rotation equals 2*pi radians, one degree is equivalent to pi/180 radians.
The formula to convert radian to degree is:

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

Below is the implementation of the above approach:

## C++

 `// C++ program to convert degree to radian` `#include ``#include ``using` `namespace` `std;` `// Function for conversion``double` `Convert(``double` `degree)``{``    ``double` `pi = 3.14159265359;``    ``return` `(degree * (pi / 180));``}` `// Driver code``int` `main()``{``    ``double` `degree = 30;``    ``double` `radian = Convert(degree);``    ``cout << radian;``    ``return` `0;``}`

## Java

 `// Java program to convert degree to radian``import` `java.io.*;``import` `java.util.*;` `class` `GFG {``    ` `// Function for conversion``static` `double` `Convert(``double` `degree)``{``    ``double` `pi = ``3.14159265359``;``    ` `    ``return` `(degree * (pi / ``180``));``}` `// Driver code``public` `static` `void` `main(String[] args)``{``    ``double` `degree = ``30``;``    ``double` `radian = Convert(degree);``    ` `    ``System.out.printf(``"%.6f"``, radian);``}``}` `// This code is contributed by coder001   `

## Python3

 `# Python3 program to convert degree to radian` `# Function for conversion``def` `Convert(degree):` `    ``pi ``=` `3.14159265359``;``    ``return` `(degree ``*` `(pi ``/` `180``));` `# Driver code``degree ``=` `30``;``radian ``=` `Convert(degree);``print``(radian);` `# This code is contributed by Code_Mech`

## C#

 `// C# program to convert degree to radian``using` `System;` `class` `GFG{``    ` `// Function for conversion``static` `double` `Convert(``double` `degree)``{``    ``double` `pi = 3.14159265359;``    ` `    ``return` `(degree * (pi / 180));``}` `// Driver code``public` `static` `void` `Main()``{``    ``double` `degree = 30;``    ``double` `radian = Convert(degree);``    ` `    ``Console.Write(``"{0:F6}"``, radian);``}``}` `// This code is contributed by Code_Mech`

## Javascript

 ``
Output:
`0.523599`

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