Inspired by #mathart from Geometry Daily #425. [url]http://geometrydaily.tumblr.com/post/48773482635/425-level-a-new-minimal-geometric-composition[br][/url][br]There's quite a pleasant relationship among similar rectangles.[br][br]The tool allows you to draw a similar rectangle with the corners of one side and a desired ratio.
More GeoGebra at [url]mathhombre.blogspot.com[/url]