Question

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

Answer 1

object HeronTriangleArea {

  // Function to calculate area using Heron's formula
  def heronArea(a: Double, b: Double, c: Double): Double = {
    val s = (a + b + c) / 2.0 // semi-perimeter

    math.sqrt(s * (s - a) * (s - b) * (s - c))
  }

  def main(args: Array[String]): Unit = {
    val (a, b, c) = (6.0, 9.0, 13.0)

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




/*
run:

Area of the triangle = 23.6643

*/

 

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