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ego-motion
Author:
tresym96
New Resources
錐體建築師
畫出對稱圖形
拼砌四邊形
兩位數除以一位數（二）
兩位數除以一位數（一）
Discover Resources
My second work
正方形截痕
外接圓的心
congruent triangle_provided by Mr Yeung Kar Chun
莱洛三角形的互滚
Discover Topics
Rectangle
Hypergeometric Distribution
Set Theory
Geometry
Rhombus