# Assignment 92; *HeronsFormula*

## Code

// Donovan Rich
// Period 6
// Heron's Formula
// HeronsFormula.java
// 3/21/2016
public class HeronsFormula
{
public static void main( String[] args )
{
double a;
a = triangleArea(3, 3, 3);
System.out.println("A triangle with sides 3,3,3 has an area of " + a );
a = triangleArea(3, 4, 5);
System.out.println("A triangle with sides 3,4,5 has an area of " + a );
a = triangleArea(7, 8, 9);
System.out.println("A triangle with sides 7,8,9 has an area of " + a );
System.out.println("A triangle with sides 5,12,13 has an area of " + triangleArea(5, 12, 13) );
System.out.println("A triangle with sides 10,9,11 has an area of " + triangleArea(10, 9, 11) );
System.out.println("A triangle with sides 8,15,17 has an area of " + triangleArea(8, 15, 17) );
System.out.println("A triangle with sides 9,9,9 has na area " + triangleArea(9,9,9) );
}
// Yes, both programs provide the same output.
// Without methods, ~50. With methods, ~30.
public static double triangleArea( int a, int b, int c )
{
// the code in this method computes the area of a triangle whose sides have lengths a, b, and c
// There wwas much less to fix in this file.
//
double s, A;
s = (a+b+c) / 2.0;
A = Math.sqrt( s*(s-a)*(s-b)*(s-c) );
return A;
// ^ after computing the area, "return" it
}
}

### Picture of the output