text: /*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*/ 
   
  //Important to know: A full perimeter around a circle would be 2*pi*radius. 
  //In this case we have a quarter of circle, so the arc A is 1/2 * pi * radius
  // What we want to know is radius**2
  
  function squareArea(A){
    return (parseFloat(((2*A/Math.PI)**2).toFixed(2)))
  }
  
  //parseFloat to convert to float
  //.toFixed(2) to round to 2 decimals
  