平行四边形的高的几何构造
2018-11-09 14:12
本范例演示平行四边形高的几何作图方法。通过构造平行四边形的顶点、边，利用正交线（垂线）命令作出平行四边形的高，并标注相关角度（α、β、γ、δ），直观展示高与底边、斜边及内角之间的几何关系。适用于平面几何教学，帮助学生理解平行四边形面积公式中高与底的对应关系，以及垂线段的构造技巧。
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