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圖I
Author:
whtong
GeoGebra
New Resources
兩位數加法
找出對稱軸
兩組對邊相等的四邊形
算柱 (兩位數)
球体的体积推导（优化版）
Discover Resources
梯形的面積
梯形(面積)
Locus (Two points 1)
圖解直式開方
橢圓的副本
Discover Topics
Vectors 2D (Two-Dimensional)
Plane Figures or Shapes
Power Functions
Conditional Probability
Trigonometric Functions