Relationship between Arc length, Radius and Angle in radians
Original creation of this applet goes to Jennifer Silverman and subsequent changes by Tim Brzezinski (derived from this worksheet.)
If you are looking for activity on Relationship between Arc Length, Area of Sector, Radius and Angle in Degrees, see :https://www.geogebra.org/m/e5UQWM5m
Interact with this applet for a few minutes, then answer the question that follows.
Is there any relationship among the arc length , its angle subtended at the centre of the circle (in radians), and the radius of the circle? If so, describe.
If you cannot remember exactly how to describe the concept of a radian, please refer here.