Truncated Cone: 3D Construction and Rotation in GeoGebra

①This example demonstrates how to construct a truncated cone (frustum) in GeoGebra's 3D view and rotate it to visualize its solid shape. ②Core mathematical concepts include solid geometry definitions of cones and frustums, along with right triangles, natural numbers, special points, power functions, and logarithmic functions, which may serve as auxiliary parameters or annotations. ③Construction highlights: based on the summary, the Cone command creates the cone, while Point, PointIn, Polygon, and Segment define key points, cross-section polygons, and edges; Rotate is used to spin the object. Objects include points A, B, C, D, E, F, G, H, I, segments a, b, c, d, e, f, g, and auxiliary elements q1, a_1, f_1, g_1, c_1, h, n, etc., illustrating a step-by-step build from basic elements to a complex solid. ④This is suitable for high school or early college students learning solid geometry, 3D modeling, and GeoGebra skills, and for teachers demonstrating frustum generation and properties in class.