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3-6-06
Author:
Tzuen Hsu
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
近似值:有效數字
兩位數除以一位數(二)
三位數除以一位數(二)
四邉形 (四年級) 教師版
Discover Resources
以面積固定平行線軌跡
物件平移的概念
test
橢圓1--四圓心近似法
dragon(龙)
Discover Topics
Centroid or Barycenter
Linear Functions
Boxplot
Congruence
General Quadrilateral