三角形不等式
2014-11-05 18:18
本 GeoGebra 范例演示三角形不等式的基本性质。通过构造三角形 ABC 及其各边、中点与相关线段，直观展示三角形任意两边之和大于第三边、任意两边之差小于第三边等经典不等式关系。范例中使用了圆、多边形、距离、线段和中点等几何对象，帮助用户通过交互式图形理解三角形边长之间的约束条件，适用于初中及高中几何不等式教学。
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