Intersection of Three Planes in 3D Space

This GeoGebra example dynamically demonstrates the intersection of three planes in three-dimensional space, visualizing their lines of intersection and common points. It covers core concepts such as plane equations, intersection vectors, spatial point relationships, and coordinate determination of intersection points. Construction uses GeoGebra commands including Point, Plane, Intersect, and Vector, with objects A, B, C, p, q defining the planes and their intersections. The model is suitable for high school spatial geometry, introductory multivariable calculus, or independent math exploration, helping learners transition from geometric intuition to analytic representation.