This applet was originally inspired by my friend, John Ulbright:[br][url=https://www.geogebra.org/u/john.ulbright%40wayne.k12.in.us]https://www.geogebra.org/u/john.ulbright%40wayne.k12.in.us[/url][br][br]It was further modified by inspiration from this article:[br][url=https://pubs.nctm.org/view/journals/tcm/24/3/article-pe1.xml]https://pubs.nctm.org/view/journals/tcm/24/3/article-pe1.xml[/url]