Area of a square.js

/*Complete the function that calculates the area of the red square, when the length of the circular arc A is given as the input. Return the result rounded to two decimals.

Graph

Note: use the π value provided in your language (Math::PI, M_PI, math.pi, etc)*/

function squareArea(A){
  return +(((2 * A) / Math.PI)**2).toFixed(2)
}

function squareArea(A){
  var circum = 4 * A;
  var radius = circum / (2 * Math.PI);
  var area = Math.pow(radius, 2);
  return Math.round(area*100)/100
}