6.35 (Geometry: area of a pentagon) The area of a pentagon can be computed using the
following formula:
Write a method that returns the area of a pentagon using the following header: public static double area(double side) Write a main method that prompts the user to enter the side of a pentagon and displays its area. Here is a sample run: Enter the side: 5.5 The area of the pentagon is 52.04444136781625.
Write a method that returns the area of a pentagon using the following header: public static double area(double side) Write a main method that prompts the user to enter the side of a pentagon and displays its area. Here is a sample run: Enter the side: 5.5 The area of the pentagon is 52.04444136781625.
import java.util.Scanner; public class ProgrammingExercise6_35 { public static void main(String[] args) { Scanner input= new Scanner(System.in); System.out.print("Enter the side:"); double s = input.nextDouble(); System.out.println("The area of the pentagon is " + area(s)); } public static double area(double side) { return 5*Math.pow(side, 2)/(4*Math.tan(Math.PI/5)); } }
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