Proof of Law of Sines

This example demonstrates the geometric proof of the Law of Sines using dynamic geometry. It involves core concepts like triangles, sine functions, and side-angle relationships. Constructed with GeoGebra commands such as Polygon and Angle to form a triangle, defining points, segments, angles (α, β, γ), and textual annotations. Suitable for high school students learning the proof of trigonometric theorems.