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圓與切線
Author:
李春培
圓與切線
GeoGebra
New Resources
兩組對邊相等的四邊形
算柱 (兩位數)
判斷球體
找出對稱軸
兩組對邊相等和有直角的四邊形
Discover Resources
猜猜平均數（限時版）
圓周 (圖形C)
第一組
基本作圖2
課堂工作紙(二)
Discover Topics
Secant Line or Secant
Square
Linear Regression
Isosceles Triangles
Mathematics