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湯圓rice ball
Author:
陳正鴻
GeoGebra
New Resources
四邊形的特性
兩位數加法
異分母分數減法
兩位數除以一位數（二）
錐體建築師
Discover Resources
特別角的三角函數值(1)
圓錐曲線
test
畢氏三元數
五点共圆
Discover Topics
Upper and Lower Sum or Riemann Sum
Rectangle
Vectors 2D (Two-Dimensional)
Tangent Function
Poisson Distribution