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GeoGebra
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GeoGebra
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seq,tra
Author:
chen mingchuan
GeoGebra
New Resources
畫出對稱圖形
画直线等分三角形的面积
四邊形的特性
球体的体积推导（优化版）
第八周作业
Discover Resources
Light Game
onemove
練習 - 逆時針旋轉（三角形）
诱导公式四（原点对称关系）
序列向量
Discover Topics
Hypothesis Testing
Bar Chart or Bar Graph
Circle
Orthocenter
Addition