平行四边形平移与面积推导
2019-03-18 01:49
本 GeoGebra 范例演示了小学阶段平行四边形面积公式的推导过程。通过几何变换中的平移操作，将平行四边形沿高剪开并平移，拼接成一个等面积的长方形。构造中使用了线段、多边形、正交线（垂线）、交点以及平移（Translate）等命令，直观展示了割补法的数学思想，帮助学生理解平行四边形面积等于底乘高的几何本质。
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