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Triangular Number 三角形數
Author:
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
兩位數除以一位數(一)
四邊形的特性
球体的体积推导(优化版)
三位數除以一位數(一)
画直线等分三角形的面积
Discover Resources
Task 5: Regular Hexagon
正四面體利用向量座標轉換展開圖
Sierpinski 分形
釘版
旋轉橢圓
Discover Topics
Similar Triangles
LCM and GCD
Real Numbers
Integral Calculus
Inequalities