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Copy of Triangular Number
Author:
Ronan Downes
,
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
錐體建築師
判斷球體
四邊形的特性
球体的体积推导（优化版）
拼砌四邊形
Discover Resources
一題多解,托勒密,代數,三角,柯西,鍾元杰
Floor plan area
第四冊4-1習題8(2)
集合
軸對稱的副本
Discover Topics
Arithmetic Mean
Scalene Triangles
Integral Calculus
Correlation
Step Functions