Relationship between Arc Length, Radius and Angle (in degrees)

[color=#000000]Original creation of this applet goes to [url=https://www.geogebra.org/jennifer+silverman]Jennifer Silverman[/url] and subsequent changes by [url=https://www.geogebra.org/tbrzezinski]Tim Brzezinski[/url] (derived from [url=https://www.geogebra.org/material/show/id/kJWspwbf]this worksheet[/url].) [br][br]Interact with this applet for a few minutes, then answer the question that follows. [/color]
[color=#000000]Is there any relationship among[/color] the [color=#cc0000][b]arc length[/b][/color], the[color=#1155cc][b] angle (in degrees) [/b][/color][color=#000000]at the centre, and the [b]radius of the circle[/b]? Can you see any pattern for the ratio of angle at centre over total angle (360 deg), and the ratio of arc length over the circumference?[br][/color]

Information: Relationship between Arc Length, Radius and Angle (in degrees)