Net and Surface Area of Triangular Prism by Trevor Leach

① This GeoGebra example dynamically demonstrates the net and surface area of a triangular prism, allowing learners to visualize how a 3D solid unfolds into a 2D composite of polygons and how the total surface area is the sum of the areas of its faces. ② Core mathematical concepts include the structure of a triangular prism, the construction of its net, the surface area formula (two triangular bases plus three rectangular lateral faces), and the relationship between polygon areas, side lengths, and heights. ③ Construction highlights: Based on the construction summary, the example uses GeoGebra commands such as Segment, Point, Distance, Polygon, Intersect, and Midpoint, creating multiple polygons (poly1 to poly5) and auxiliary points (e.g., H, N, G) to measure edge lengths and heights for area calculations, likely with draggable points or sliders for dynamic adjustment. ④ This resource is suitable for middle school to high school students and teachers studying solid geometry, surface area calculations, or using GeoGebra for geometric modeling, and can be used for classroom demonstrations or independent exploration.