Circle tag · Community Cases
Curated works from the GeoGebra community
Circles, with chords, arcs, tangents, sectors and inscribed angles, are foundational in both construction and coordinate geometry.
Triangle Construction Problem 3b: Equilateral Triangle and Circle Symmetry
Interactive Rotational Symmetry Demonstration
Liu Hui's Cyclotomy Method
Spherical Cross-Section: Intersection Curve of a Plane and a Sphere
Checkers Puzzle: Geometric and Logical Challenge on a Board
Geometric Construction and Demonstration of Ellipse Locus
Expectation Value Simulator: Spinner Probability Experiment
Opposite Angles of a Cyclic Quadrilateral
Constant Distance from an Interior Point to the Radical Axis
Quadrilateral with Supplementary Opposite Angles
Triangle Congruence and Geometric Transformations Construction
Solving Triangles: Exploring the SSA Ambiguous Case