[color=#000000]Is there any relationship among[br][/color][b][br]the length of the arc[/b], [br]the [b]measure its corresponding central angle (shown in radians)[/b][color=#000000], and [br]the [b]radius of the circle[/b]? [br][br]If so, describe.[br][br]If you cannot remember exactly how to describe the concept of a radian, please [url=https://www.geogebra.org/m/e3aamere]refer here[/url]. [/color]