Question

How to calculate the area of a triangle using Heron’s formula in Java

Answer 1

public class HeronTriangleArea {

    // Function to calculate area using Heron's formula
    public static double heronArea(double a, double b, double c) {
        double s = (a + b + c) / 2.0; // semi-perimeter

        return Math.sqrt(s * (s - a) * (s - b) * (s - c));
    }

    public static void main(String[] args) {
        double a = 6, b = 9, c = 13;

        // Check validity of triangle
        if (a + b > c && a + c > b && b + c > a) {
            double area = heronArea(a, b, c);
            System.out.printf("Area of the triangle = %.4f%n", area);
        } else {
            System.out.println("Invalid triangle sides!");
        }
    }
}

 
 
/*
run:
 
Area of the triangle = 23.6643
 
*/

 

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