同底等高的三角形面积相等
2020-02-22 09:12
本 GeoGebra 范例直观演示了“同底等高的三角形面积相等”这一经典平面几何定理。通过构造共底边的多个三角形，并利用平行线控制顶点位置，用户可以拖动顶点观察三角形形状的变化，同时验证其面积始终保持不变。该动态模型有助于深入理解三角形面积公式及等积变形原理。
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