Function Flash ActionScript

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  4. A function that calculates the area of a rectangle and returns the value as a number
package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
        trace(calculateArea(2,3));
    }
    function calculateArea(nA:Number, nB:Number):Number {
      var nArea:Number = nA * nB;
      return nArea;
    } 
  }
}