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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
【案例】2018年全国1卷理科12题
球體建築師
【案例】圆柱体内放置一个大球六个小球
四邉形 (四年級) 教師版
判斷球體
Discover Resources
L: y=mx+1
Tangent properties
方程式(?)
长方体切割为小正方体
二倍角公式證明
Discover Topics
Inequalities
Vectors 3D (Three-Dimensional)
Integers
Dilation
Circle