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兩弦的長度比較
Author:
luke huang
GeoGebra
New Resources
四邊形的特性
找出對稱軸
判斷球體
【案例】2018年全国1卷理科12题
兩位數除以一位數（一）
Discover Resources
對摺平行四邊形
四邊形面積問題
maths
一道三视图的题目（三视图作法参考）
开关灯游戏 5×3
Discover Topics
Quadratic Equations
Incircle or Inscribed Circle
Cube
Rational Numbers
Linear Programming or Linear Optimization