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弦心距垂直平分弦
Author:
謝易達
GeoGebra
New Resources
兩位數加法
找出對稱軸
三位數除以一位數（一）
畫出對稱圖形
柱體建築師
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task6
Relations Among Trigonometric Ratios 三角比的關係
遊戲與圖像
畢氏定理拼圖
P3 平行與垂直
碎形
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Geometry
Special Points
Correlation
Equations
Orthocenter