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扇形旋轉2
Author:
AlexWang
GeoGebra
New Resources
拼砌四邊形
直角坐標平面上的旋轉變換
兩位數除以一位數（二）
第八周作业
四邉形 (四年級) 教師版
Discover Resources
GeoGebra的認識與安裝
三餘弦定理問題
Hoehn's Theorem
GGB3
圓與切線
Discover Topics
Geometric Transformations
Linear Functions
Complex Numbers
Integers
Solids or 3D Shapes