Geogebra applet hosting on Google Site
The reference resource (from which edits can be done (via online or desktop then uploaded online) , before extraction to a html file on a local drive, and subsequently uploaded and being embedded here as html code, with ggbBase64 coding) can be found at https://www.geogebra.org/m/hyxcgjch on the Geogebra resources website.
How to : Download the html file of the Geogebra resource to embed it on a Google Site. You Tube video
This particular file records the results of each attempt at https://docs.google.com/spreadsheets/d/1a26PY3nuzZaJjRok7sZyFCAtptzpiNuUzMrzuNZS63k/edit?usp=sharing