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錐體
Author:
keith leung
GeoGebra
New Resources
双心四边形
比較五件物件的重量
折扣
第八周作业1
斐波那契螺旋弧线（表格法）
Discover Resources
真分數相乘
binary and hexadecimal
gltyz 直角三角形旋轉體
金惠吉：三维李萨如
拋物線(上下型)標準式
Discover Topics
Angles
Vectors 2D (Two-Dimensional)
Statistical Characteristics
Equations
Congruence