Move the green point so that the central angle is 1 radian. What is the length of the intercepted arc (in feet)?

Move the green point so that the central angle is 2 radians. Now what is the length of the intercepted arc in feet?

[color=#000000]What is the relationship between [/color][color=#cc0000][b]the length of the arc (s)[/b][/color], the [color=#1155cc][b]measure of its corresponding central angle (use [math]\theta[/math] to represent a general central angle)[/b][/color][color=#000000], and the [b]radius of the circle (r)[/b]? [br] [br][/color]We want an equation for [i]s: [/i]s=???

What would be the central angle that cuts off an intercepted arc of length = 16 ft? Move the green point to check your answer. Explain why this is the case.