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賺賠：例3
Author:
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
小数 的副本
近似值：有效數字
畫出對稱圖形
找出對稱軸
算柱 (兩位數)
Discover Resources
特別角的三角函數值(1)
angles sum of a triangle 1
Ex (SSS)
拋物線5--包絡線法
初中数学探究
Discover Topics
Median Line
Standard Deviation
Circumcircle or Circumscribed Circle
Cube
Natural Numbers