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Example 5
Author:
lamanleung
GeoGebra
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兩組對邊相等和有直角的四邊形
兩位數加法
兩組對邊相等的四邊形
判斷球體
找出對稱軸
Discover Resources
面積2
旋轉的概念
∆ABD 面積 = ?
拼出三角形的副本
元旦快乐（制作：孟宝兴）
Discover Topics
Tangent Function
Complex Numbers
Unit Circle
Special Points
Rotation