Program to Convert Radian to Degree

23 Jun, 2022
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
Java
Python3
C#
PHP
Javascript
// C++ code to convert radian to degree#include <iostream>using namespace std; // Function for conversiondouble Convert(double radian){    double pi = 3.14159;    return(radian * (180 / pi));} // Driver codeint main(){    double radian = 5.0;    double degree = Convert(radian);         cout << degree;    return 0;} // This code is contributed by Khushboogoyal499
// C code to convert radian to degree #include <stdio.h> // Function for conversiondouble Convert(double radian){    double pi = 3.14159;    return(radian * (180/pi));} // Driver Codeint main(){    double radian = 5.0;    double degree = Convert(radian);    printf("%.5lf", degree);    return 0;}
// Java code to convert radian to degree import java.io.*;class GFG {    // Function for conversion    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);    }}
# Python code to convert radian to degree # Function for conversiondef Convert(radian):    pi = 3.14159    # Simply used the formula    degree = radian * (180/pi)    return degree # Driver Coderadian = 5print("degree =",(Convert(radian)))
// C# code to convert radian to degree.using System; class GFG {     // Function for conversion    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 code to convert radian to degree // Function for conversionfunction 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?>
<script> // Javascript code to convert radian to degree // Function for conversionfunction Convert(radian){    let pi = 3.14159;    return(radian * (180/pi));} // Driver Code      let radian = 5.0;    let degree = Convert(radian);    document.write(degree);  // This code is contributed Mayank Tyagi </script>
286.479
Time Complexity: O(1), as we are not using any loops.
Auxiliary Space: O(1), as we are not using any extra space.
Example :
The following program demonstrates toDegree() and toRadians() .
Java
// Demonstrate toDegree and toRadians(): class GFG{public static void main(String args[]){double theta = 120.0;      // degree --> radians  System.out.println(theta+ " degree is "+ Math.toRadians(theta)+ " radians.");     theta =1.312;  // radians --> degrees   System.out.println(theta+ " radians is "+ Math.toDegrees(theta)+ " degrees.");}}
120.0 degree is 2.0943951023931953 radians.
1.312 radians is 75.17206272116401 degrees.
Reference: https://en.wikipedia.org/wiki/Radian https://en.wikipedia.org/wiki/Degree_(angle) 
nitin mittal
mayanktyagi1709
khushboogoyal499
sagartomar9927
rohitsingh07052
singhankitasingh066
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