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play tennis
Author:
李春培
play tennis
GeoGebra
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找出對稱軸
四邊形的特性
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
畫出對稱圖形
Discover Resources
一般變換
something wrong...
美麗的地球
ycmc P5 Math lesson 1-2
乘加挑戰題
Discover Topics
Rectangle
Secant Line or Secant
Logarithm
Parametric Curves
Standard Deviation