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龍騰4_1-1課例2
Author:
廖傑成
GeoGebra
New Resources
算柱 (兩位數)
兩組對邊相等的四邊形
錐體建築師
球體建築師
兩位數除以一位數（二）
Discover Resources
眼球定理
生活中的平面圖形關係─全等
sun1
正立方體反射面
ttttt
Discover Topics
Trapezoid
Fractions
Reflection
Tangent Line or Tangent
Division