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ie 3
Author:
LAM YU SANG
GeoGebra
New Resources
錐體建築師
四邉形 (四年級) 教師版
兩位數除以一位數（二）
判斷球體
畫出對稱圖形
Discover Resources
Add and subtract
正方形轉轉
切割正二十面體
試算表的應用
全景平面投影
Discover Topics
Line Segment
Cosine
Bar Chart or Bar Graph
Curve Sketching
Step Functions