多边形面积计算交互演示
2018-05-18 09:45
本GeoGebra范例演示多边形面积的计算方法。通过构造多个多边形（poly1等）及其边、顶点，结合向量与线段工具，展示多边形面积的几何求解过程。范例包含可拖动的交互点（moved1至moved4），允许用户动态调整多边形形状并实时观察面积变化，适用于平面几何与多边形面积公式的教学演示。
所属专题
四年级下册数学《面积（一）》教师版
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</construction>
</geogebra>