The Net of a Triangular Prism by Mark Willis

① This example demonstrates the net of a triangular prism, showing how a set of planar polygons can be folded to form a 3D prism. ② Core mathematical concepts include solid geometry, prism structure, nets and folding, correspondence between faces and edges, and transformation between 2D and 3D shapes. ③ Construction highlights: using GeoGebra commands Point, Polygon, Prism, and Net; objects include vertices A, B, C, D, E, F, faces faceABED, faceBCFE, faceACFD, faceDEF, and edges edgeAD, edgeBE, edgeCF, etc.; the unfolded net consists of triangles and quadrilaterals (e.g., faceGHI, faceGHKJ). ④ Suitable for middle or high school geometry classes, helping students visualize surface development and enhance spatial reasoning, also useful for interactive math exploration.