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++
// 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 = 5print("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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