Cylinder Construction and Volume Calculation

① This GeoGebra example dynamically demonstrates the 3D construction of a cylinder, including its base circle, lateral surface, and the visualization of its volume. ② Core mathematical concepts involve solid geometry: definition of a cylinder, relationship between base radius and height, volume formula V=πr²h, and geometric transformations (e.g., rotation) applied to 3D shapes. ③ Construction highlights: from the summary, commands such as Intersect, Circle, and Cylinder are used, with objects A, B (center and point), r (radius), h (height), c (circle), C (cylinder), plus a button (button1) and texts (text1/text2/text3) to interactively display volume V and surface area S. ④ Suitable for upper middle school or high school students (e.g., geometry or solid geometry courses) to understand cylinder properties, and for teachers to use in classroom demonstrations or for students to explore how changing parameters affects volume.