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海伦公式分步证明

Author:math Ku

Topic:Area, Similar Triangles, Triangles

Prove Heron's Formula

New Resources

畫出對稱圖形
判斷球體
GeoGebra笔记功能体验课件
球体的体积推导
球体的体积推导（优化版）

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平行四邊形變奏II
rectangle construction
學習單：Hilbert Curves
Parallel lines
「相似三角形」任务2的副本

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Cube
Angles
Real Numbers
Prism
Exponent

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