简易立体几何：两平面的夹角
2013-02-01 14:21
本GeoGebra范例演示了立体几何中两平面夹角的构造与计算。通过多边形、线段、交点、垂线和角度等命令，构建了包含顶点、底面及对角线的三维几何体，并作出两平面的交线及垂线，从而精确测量和展示二面角。该模型有助于直观理解空间几何中的二面角概念及其几何作图方法。
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