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公切線(配合Dilate指令)
Author:
連琨銘
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩位數除以一位數（二）
錐體建築師
兩組對邊相等的四邊形
画直线等分三角形的面积
Discover Resources
Rotational Symmetry
基本三角函數
Projection of vector in R2
圓錐截痕
圓錐曲線－圓錐截痕
Discover Topics
Geometric Distribution
Fractions
Rectangle
Solids or 3D Shapes
Intersection