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椭圆的定义
Author:
guomenglin
Topic:
Ellipse
GeoGebra
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三位數除以一位數(二)
畫出對稱圖形
算柱 (兩位數)
四邊形的特性
判斷球體
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費爾巴哈(Feuerbach)定理
gjh-h03-01 摺紙問題的圖形
棒形圖2
任意三角形
「相似三角形」任务3的副本
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Real Numbers
Linear Functions
Diagrams
Confidence Interval
Matrices