Tutorial: Rotating Rings in 3D

This example demonstrates how to build and animate ring-like geometry in 3D by applying rotation to a constructed surface. It helps learners visualize how rigid 3D transformations change the shape and orientation of an object over time. Key math concepts include solid/3D geometry, surface construction, axis-based rotation (Rotate in GeoGebra), and parameter-driven animation using a time/angle variable and a speed control. The construction uses Surface to create the ring surface geometry, Line to define an axis or key helper line for rotation, and Rotate to generate rotated copies/animated motion. The model includes objects such as Setup, c1/c2/c3 (core defining points/controls), s1/s2/s3 (surface components), l (line/axis object), t (a transformation/time parameter), r1/r2/r3 (rotation outputs), and speed to control animation rate. Suitable for secondary advanced geometry, intro STEM visualization, and GeoGebra-based learning activities focused on transformations and 3D modeling.