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Polygonal numbers
Author:
Tung Chao
Topic:
Numbers
Use triangular and square numbers to investigate number patterns
GeoGebra
New Resources
兩組對邊相等的四邊形
柱體建築師
四邉形 (四年級) 教師版
四邊形的特性
三位數除以一位數（二）
Discover Resources
正弦函數y=sin(x)的泰勒級數
Proof1 彭凱揚
七巧板
平行四邊形
拼貼3
Discover Topics
Vectors
Stochastic Process or Random Process
Conic Sections
Solids or 3D Shapes
Expected Value