立体几何：棱锥侧面之间的二面角构造与计算
2016-09-16 12:15
本范例演示了如何在GeoGebra中构造并计算棱锥侧面之间的二面角。通过构建棱锥模型，利用球面、圆锥曲线交点、中点及线段等几何对象，精确求解相邻侧面所成的空间夹角。该构造综合运用了立体几何与三角函数知识，直观展示了空间角度的测量与计算方法，适合用于立体几何教学与空间想象能力训练。
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