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Polygonal numbers
Author:
Tung Chao
Topic:
Numbers
Use triangular and square numbers to investigate number patterns
GeoGebra
New Resources
長方體平面投影 (Codex版)
國旗 (Claude 版)
Earth with coastline
找出對稱軸
國旗 (作圖步驟直接餵給 Claude)
Discover Resources
七彩之珠
Angles at the same segment
正立方體與正三角錐
孟氏定理 (Menelaus' theorem)
Copy of 劉徽的「割圓術」
Discover Topics
Vectors 3D (Three-Dimensional)
Symmetry
Isosceles Triangles
Parallelogram
Pie Chart or Circle Chart