Dynamic Construction and Rotation of a Pentagonal Pyramid

① This example demonstrates the construction of a pentagonal pyramid (regular pentagonal pyramid) and allows dynamic observation through rotation and sliders. ② Core mathematical concepts include solid geometry of pyramids, polygonal bases, triangular lateral faces, rotational symmetry, and geometric transformations controlled by parameters. ③ Construction highlights: GeoGebra commands such as Polygon create the pentagonal base, Pyramid generates the solid, Rotate performs rotation about an axis, Line helps define the rotation axis, If and Slider control dynamic display, and multiple point objects (e.g., ShapePt1~5) define base vertices, with ShapeBaseR representing the rotated base. ④ Suitable for upper secondary or early university students learning solid geometry, spatial visualization, and dynamic geometry software, also useful for demonstrations or exploring pyramid properties.