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110-9-3
Author:
Cheng Weishiang
GeoGebra
New Resources
兩位數加法
近似值：有效數字
算柱 (兩位數)
四邊形的特性
判斷球體
Discover Resources
Area of cirle
測試
Sequence指令練習(包絡線：橢圓)
shihfeng的第一本Geogebra繪本
二元线性规划的图解法(18.2 例4)
Discover Topics
Solids or 3D Shapes
Median Line
Dilation
Tangent Line or Tangent
Incircle or Inscribed Circle