[i]Please download the .ggb file and open with the Geogebra Classic 5 application (see [url=https://www.geogebra.org/download]https://www.geogebra.org/download[/url]) if the animation is too slow in your browser. The animation is designed to be opened on a 1080p screen and with "Make everything bigger" setting of Windows set to 100% ([url=https://support.microsoft.com/en-us/windows/change-the-size-of-text-in-windows-1d5830c3-eee3-8eaa-836b-abcc37d99b9a]Change the size of text in Windows - Microsoft Support[/url]).[/i]