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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
異分母分數減法
兩位數加法
四邊形的特性
判斷球體
畫出對稱圖形
Discover Resources
由組織圖到頻數多邊形
三角函數圖形
龍騰4_1-1講進4
轴对称
外積無結合律
Discover Topics
Translation
Addition
Constructions
Similarity Transformation or Similarity
Unit Circle