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ruler
Author:
felixchow
菱形
GeoGebra
New Resources
四邊形的特性
兩位數加法
直角坐標平面上的旋轉變換
兩組對邊相等的四邊形
算柱 (兩位數)
Discover Resources
七巧板揖人
horizontal
兩位小數GAME
圆锥曲线的统一定义（第二定义）
St. Line
Discover Topics
Integers
Bar Chart or Bar Graph
Random Experiments
Parabola
LCM and GCD