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正20面體展開
Author:
GEOGEBRA啟
GeoGebra
New Resources
找出對稱軸
兩組對邊相等和有直角的四邊形
GeoGebra笔记功能体验课件
異分母分數減法
兩位數除以一位數（二）
Discover Resources
點座標旋轉公式
直線與平面垂直
由組織圖到頻數多邊形及頻數曲線
乘法的副本
乘法计时训练
Discover Topics
Sine
Bar Chart or Bar Graph
Parametric Curves
Tree Diagrams
Orthocenter