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切線段等長
Author:
謝易達
可移動P點，檢查切線段是否等長
GeoGebra
New Resources
柱體建築師
找出對稱軸
算柱 (兩位數)
三位數除以一位數（二）
畫出對稱圖形
Discover Resources
複數等比級數
圓內一點到根軸的距離
二次函數的圖形
六角形(草稿)
dynamics dragon
Discover Topics
Difference and Slope
Means
Tree Diagrams
Quadratic Equations
Geometry