Spiky Ball Model (2D + Time Dimension)

This example dynamically demonstrates a 'spiky ball' geometry in a 2D plane with a time parameter, combining vector motion and shape reflection. Core mathematical concepts include vectors, triangles, polygons, reflection transformations, variance, frequency distribution, median lines, and right triangles. Construction leverages GeoGebra commands Intersect, Point, and Segment, along with objects T, c, d, e, f, g, h, k, p, A, B, C, D, i, j, l, m, q, text1, and a to build the dynamic model. Suitable for high school and above, it serves as a tool for vector geometry, dynamic modeling, spatial reasoning, and statistics education (variance/frequency distribution).