点到直线的距离：垂线段最短
2015-11-18 03:34
本范例演示了点到直线距离的几何性质，即点到直线的所有连线中，垂线段最短。通过GeoGebra动态构造，用户可以直观地观察点到直线上任意一点的线段长度变化，并验证当该线段与直线垂直时，距离达到最小值。此范例结合了正交直线、交点、线段和角度等几何元素，适合用于平面几何与解析几何的辅助教学。
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