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能量守恆
Author:
李春培
能量守恆
GeoGebra
New Resources
畫出對稱圖形
兩位數加法
算柱 (兩位數)
拼砌四邊形
三位數除以一位數（一）
Discover Resources
整數的減法
正12面體內接正四面體
正方形截痕
谢尔宾斯基三角形
三角形面積
Discover Topics
Vectors 3D (Three-Dimensional)
Circumcircle or Circumscribed Circle
Tree Diagrams
Trapezoid
Tangent Line or Tangent