Sin(x) & Unit Circle - Radians

This GeoGebra example dynamically demonstrates the relationship between the sine function and the unit circle using radian measure. It visually shows how angles in radians correspond to decimal numbers and how their sine values are also decimals, helping students bridge the gap between geometric angles and numerical trigonometric values. Core concepts include radians, the unit circle, the definition of sine, and the generation of the sine curve. The construction uses commands such as Point, Line, Circle, Intersect, Rotate, CircleArc, Angle, Segment, Distance, OrthogonalLine, Length, and Midpoint to build the unit circle, the rotating angle, the sine segment, and the corresponding point on the sine graph. Suitable for high school trigonometry classes or introductory college courses, this interactive tool is ideal for learners who need to visualize the connection between angle rotation and sine values.