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時鐘
Author:
JE
GeoGebra
New Resources
第八周作业
近似值：有效數字
拼砌四邊形
sanjiaohanshu
畫出對稱圖形
Discover Resources
正弦定理
平面
相似三角形的邊長成比例
旋轉的概念
較複雜的周界問題(二)
Discover Topics
Vectors 3D (Three-Dimensional)
Triangles
Line Segment
Numbers
Geometric Transformations