find the area of a regular polygon in typescript

index.ts
function findAreaOfRegularPolygon(numOfSides: number, lenOfSide: number): number {
  const apothem = lenOfSide / (2 * Math.tan(Math.PI / numOfSides));
  const area = (1 / 2) * numOfSides * lenOfSide * apothem;
  return area;
}
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index.ts
const numOfSides = 6;
const lenOfSide = 5;
const area = findAreaOfRegularPolygon(numOfSides, lenOfSide);
console.log(`The area of the ${numOfSides}-sided regular polygon with side length ${lenOfSide} is ${area}.`);
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index.ts
The area of the 6-sided regular polygon with side length 5 is 64.9519052838329.
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