Tangents to a Circle (phone-friendly)

This example demonstrates how to construct tangents to a circle and explore related geometric properties. It involves core math concepts like circles, tangent lines, midpoints, intersections, segments, symmetry, and differential calculus. The construction uses GeoGebra commands such as Circle, Segment, Midpoint, Intersect, and Line. Suitable for high school students learning analytical geometry and geometric constructions, or for educational demonstrations.