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一元二次方程式-應用問題(兩圓相切-2)
Author:
均一
GeoGebra
New Resources
四邊形的特性
sanjiaohanshu
兩位數除以一位數（二）
找出對稱軸
算柱 (兩位數)
Discover Resources
square construction
Sequence指令練習(二維2)
展開基本
圓柱動態展開圖
椭圆内光的反射作图步骤
Discover Topics
Cone
Cube
Fractions
Reflection
Sphere