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Write a Java method to find the area of a pentagon

YasminRadwan26
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2022-05-12
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Write a Java method to find the area of a pentagon

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YasminRadwan26
2022-05-12
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In this demo I have used NetBeans IDE 8.2 for debugging purpose. But you can use any java programming language compiler as per your availability..

import java.util.Scanner;
public class Javaexcercise {
 
  public static void main(String[] args) {
 
        Scanner input = new Scanner(System.in);
        System.out.print("Enter the number of sides: ");
        int n = input.nextInt();
        System.out.print("Input the side: ");
        double side = input.nextDouble();
 
        System.out.println("The area of the pentagon is " + pentagonarea(n, side));
    }
 
    public static double pentagonarea(int n, double s) {
        return  (n * s * s) / (4 * Math.tan(Math.PI/n));
    }
}

Result:

Enter the number of sides: 8

Input the side: 9

The area of the pentagon is 391.10259710444143

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