Relations Among Trigonometric Ratios

This example demonstrates the geometric relationships and identities among sine, cosine, and tangent within the unit circle and right triangles. Core math concepts include trigonometric function definitions, radian measure, angle rotation, and trigonometric identities. Construction relies on GeoGebra commands such as Circle, Point, Segment, Rotate, Angle, OrthogonalLine, and Intersect to dynamically visualize the ratios. Suitable for high school or early college students to explore the dynamic connections and geometric meanings of trigonometric ratios.