# Program to find the Interior and Exterior Angle of a Regular Polygon

Given the number of sides n of a regular polygon. The task is to find out the Interior angle and Exterior angle of the polygon.

Examples:

Input : n = 6
Output : Interior angle: 120
Exterior angle: 60

Input : n = 10
Output: Interior angle: 144
Exterior angle: 36


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

Interior angle: The angle between two adjacent sides inside the polygon is known as the Interior angle.
Formula to find the Interior angle:

Interior Angle = Exterior angle: The angle formed by any side of a polygon and the extension of its adjacent side is known as Exterior angle.

Exterior angle =  Program to find interior and exterior angles of a Regular Polygon:

## C++

 // CPP program to find the interior and   // exterior angle of a given polygon  #include  using namespace std;     // function to find the interior and  // exterior angle  void findAngle(int n)  {      int interiorAngle, exteriorAngle;         // formula to find the interior angle      interiorAngle = (n - 2) * 180 / n;             // formula to find the exterior angle      exteriorAngle = 360 / n;         // Displaying the output      cout << "Interior angle: " << interiorAngle << endl;         cout << "Exterior angle: " << exteriorAngle;  }     // Driver code  int main()  {      int n = 10;             // Function calling      findAngle(n);      return 0;  }

## Java

 // Java program to find the interior and   // exterior angle of a given polygon  import java.io.*;     class GFG {             // function to find the interior and      // exterior angle      static void findAngle(int n)      {          int interiorAngle, exteriorAngle;                 // formula to find the interior angle          interiorAngle = (n - 2) * 180 / n;                     // formula to find the exterior angle          exteriorAngle = 360 / n;                 // Displaying the output          System.out.println("Interior angle: " + interiorAngle);                 System.out.println("Exterior angle: " + exteriorAngle);      }             // Driver code      public static void main (String[] args)      {          int n = 10;                 // Function calling          findAngle(n);      }  }

## Python3

 # Python3 program to find   # the interior and exterior  # angle of a given polygon     # function to find   # the interior and  # exterior angle  def findAngle(n):         # formula to find the      # interior angle      interiorAngle = int((n - 2) * 180 / n)             # formula to find       # the exterior angle      exteriorAngle = int(360 / n)         # Displaying the output      print("Interior angle: " ,              interiorAngle )         print("Exterior angle: " ,              exteriorAngle )     # Driver code  n = 10        # Function calling  findAngle(n)     # This code is contributed   # by Smitha

## C#

 // C# program to find the   // interior and exterior  // angle of a given polygon  using System;     class GFG   {             // function to find      // the interior and      // exterior angle      static void findAngle(int n)      {          int interiorAngle,               exteriorAngle;                 // formula to find           // the interior angle          interiorAngle = (n - 2) * 180 / n;                     // formula to find           // the exterior angle          exteriorAngle = 360 / n;                 // Displaying the output          Console.Write("Interior angle: " +                      interiorAngle + "\n");                 Console.Write("Exterior angle: " +                              exteriorAngle);      }             // Driver code      public static void Main ()      {          int n = 10;                 // Function calling          findAngle(n);      }  }     // This code is contributed  // by Smitha

## PHP

 

Output:

Interior angle: 144
Exterior angle: 36


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