What principle(s) are dynamically being illustrated here? What fractional part of the area of the entire square is the [b][color=#38761d]area of the green triangle?[/color][/b] How can this formally be proven true?
For more information, see this [url=https://twitter.com/gogeometry/status/873405683202392065]tweet[/url] from [url=https://twitter.com/gogeometry]Antonio Gutierrez[/url].