Question

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

Answer 1

// Function to calculate area using Heron's formula
function heronArea(a: number, b: number, c: number): number {
  const s: number = (a + b + c) / 2.0; // semi-perimeter
  
  return Math.sqrt(s * (s - a) * (s - b) * (s - c));
}

function main(): void {
  const a: number = 6, b: number = 9, c: number = 13;

  // Check validity of triangle
  if (a + b > c && a + c > b && b + c > a) {
    const area: number = heronArea(a, b, c);
    console.log(`Area of the triangle = ${area.toFixed(4)}`);
  } else {
    console.log("Invalid triangle sides!");
  }
}

main();



/*
run:

"Area of the triangle = 23.6643" 

*/

 

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