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三角形面積
Author:
maths_p5
GeoGebra
New Resources
第三周作业效果演示
比較五件物件的重量
第八周作业2
活动三:应用性质
盈利與虧蝕
Discover Resources
四心的變化II
七角柱(可側轉、上下轉)
QQ空间
畢氏定理的副本
Quiz on Addition and Subtraction of Directed Numbers (2)
Discover Topics
Parabola
Solids or 3D Shapes
Orthocenter
Calculus
Parallelogram