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勾股定理（几何原本）的副本
Author:
夜雨嘀嗒
Topic:
Pythagoras or Pythagorean Theorem
GeoGebra
New Resources
找出對稱軸
三位數除以一位數（一）
兩位數除以一位數（一）
錐體建築師
四邉形 (四年級) 教師版
Discover Resources
等周長的扇形與矩形
task6
橢圓軌跡01
七巧板
表内除法
Discover Topics
Inequalities
Exponential Functions
Right Triangles
Curve Sketching
Special Points