平行四边形的高的几何作图
2013-12-09 00:05
本GeoGebra范例演示了如何通过几何作图找出平行四边形的高。利用直线、交点、线段、点及正交线（垂线）等命令，构造了平行四边形的底边与对应的高。该动态模型直观展示了平行四边形底与高的垂直关系，适用于平面几何教学，帮助学生理解平行四边形面积公式的几何推导及垂线段的作法。
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