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選四塊來拼砌正方形
Author:
harryau
選四塊來拼砌正方形
GeoGebra
New Resources
畫出對稱圖形
兩組對邊相等的四邊形
兩位數加法
球体的体积推导（优化版）
【案例】2013年安徽高考15题
Discover Resources
Trisectin the cube into 3 pyramids
二元线性规划的图解法(练习1)
Pyramid with square base (angle between planes)
根據百分率找數量（一）: 例4的副本
三角形的三心
Discover Topics
Exponential Functions
Similar Triangles
Ellipse
Parametric Curves
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