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)

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

C/C++

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// 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;
}

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Java














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// 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); 


    } 


} 



















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Python3














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# 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))) 



















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Output:


286.47914




C#














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// 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. 



















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PHP














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<?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 


?> 



















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Output :


286.47914



Reference:

https://en.wikipedia.org/wiki/Radian

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



          
          
          
          

            

    

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