Unit Circle and Sin, Cos, Tan Functions

This example demonstrates a right triangle inscribed in a unit circle, visually illustrating the definitions of sine, cosine, and tangent functions through the relationship between the circle's radius and the triangle's side lengths. Core math concepts include the unit circle, trigonometric function definitions, and right triangle side length relationships. GeoGebra commands and objects used in construction are Point, Intersect, Angle, and Polygon to build the unit circle, triangle, and function graphs. Suitable for high school mathematics students learning trigonometric geometric definitions and analytical geometry teaching.