Angle:Relation between Degree & Radian measure
1.Drag the point(unnamed) on the circumference of the circle to adjust to 1 cm radius.
2.Move the point on the slider (Angle) and adjust such that the radius equal to arc length
3. Note the radian measure and degree measure
4. Drag the point(unnamed) on the circumference of the circle to adjust to any required radius
5. Move the point on the slider (Angle) and adjust such that the radius equal to arc length