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lllusion-2
Author:
zhusujuan
GeoGebra
New Resources
双心四边形
异形操场
常见四边形是否是双心四边形
龙形曲线-分形龙2
第八周作业
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task8
圓外切及內切
Copy of 選擇合適的「中間人」
y=sinx对称中心
植树问题
Discover Topics
Rhombus
Solids or 3D Shapes
Linear Programming or Linear Optimization
General Quadrilateral
Probability