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)

Input : radian = 5
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 <stdio.h> 
  
// 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

<?php 
// PHP code to convert radian to degree 
  
// Function for convertion 
function Convert($radian) 
{ 
    $pi = 3.14159; 
    return($radian * (180 / $pi)); 
} 
  
// Driver Code 
$radian = 5.0; 
$degree = Convert($radian); 
echo( $degree); 
  
// This code is contributed by nitin mittal 
?> 

Output :

286.47914

Reference:
https://en.wikipedia.org/wiki/Radian
https://en.wikipedia.org/wiki/Degree_(angle)

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My Personal Notes

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

C/C++

Java

Python3

C#

PHP

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