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鉛筆的長度
Author:
GeoGebra Institute of Hong Kong
Topic:
Geometry
GeoGebra
New Resources
找出對稱軸
球體建築師
球体的体积推导
【案例】2018年全国1卷理科12题
兩組對邊相等的四邊形
Discover Resources
推移（y 方向）
動態比大小
以剪貼比較圖形大小 題1
Conic section-ellipse&hyperbola
cos(π/n)cos(2π/n)cos(3π/n) ... cos(nπ/n) = ?
Discover Topics
Complex Numbers
Area
Special Points
Terms
Upper and Lower Sum or Riemann Sum