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Program to convert Degree to Radian
• Last Updated : 02 Jun, 2020

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

Examples:

```Input: degree = 45

Input: degree = 58
```

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

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 `

Output:

```0.523599
```

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