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兩圓內公切線
Author:
郭逸民
兩圓內公切線
GeoGebra
New Resources
找出對稱軸
判斷球體
四邊形的特性
算柱 (兩位數)
畫出對稱圖形
Discover Resources
賺賠：例3
平方差
ggb-fs-a1
平行四邊形柱算體積(可以切開)
扇形在射线上滚动
Discover Topics
Polygons
Upper and Lower Sum or Riemann Sum
Random Variables
Symmetry
Numbers