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欧拉线与三角形中心
Author:
宋晓燕
GeoGebra
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四邊形的特性
畫出對稱圖形
找出對稱軸
GeoGebra笔记功能体验课件
柱體建築師
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雙曲幾何
學資p.13第7題
圈柱
共垂心
櫻花鉤吻鮭
龜甲
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Similar Triangles
Cube
Matrices
Reflection
Diagrams