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兩圓的公切線
Author:
鍾元杰
兩圓的公切線
GeoGebra
New Resources
兩位數除以一位數（一）
三位數除以一位數（一）
畫出對稱圖形
錐體建築師
拼砌四邊形
Discover Resources
畫三角形 題2c
二次函數圖形與兩軸的交點
Conjugate Diameter—共轭直径
Gazing Cow Problem (c)
「相似三角形」任务3的副本
Discover Topics
Centroid or Barycenter
Cone
Addition
Matrices
Step Functions