I'm writing a Rectangle class and it has 2 instance variables which are 2 points that are called _pointSW and _pointNE. I have to define the width and the height of the rectangle,but I cant use any other variables besides the 2 points.I wanna ask how can I write the getWidth() method for example using just the _pointNE, or maybe better write a private method (because I cant use any new public methods) to define the width and the height, and then use it in other methods and if that's an option then how do I actually write it? thanks!