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優良作品2(怡雯)
Author:
Ching-Hui Chou
GeoGebra
New Resources
找出對稱軸
兩組對邊相等的四邊形
四邉形 (四年級) 教師版
算柱 (兩位數)
判斷球體
Discover Resources
垂足三角形
反射定律 Law of Reflection
捷徑問題 2
Compare areas by cutting shapes Q3
同心六邊形
Discover Topics
Rotation
General Quadrilateral
Reflection
Mathematics
Similar Triangles