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World's Second-Hardest Easy Geometry Problem
Author:
Terry Chau
Topic:
Geometry
幾何老題2
GeoGebra
New Resources
拼砌四邊形
三位數除以一位數（一）
柱體建築師
畫出對稱圖形
四邊形的特性
Discover Resources
電流急急棒棒
構作放大圖形
Copy of 製作組織圖
洋葱初中数学
橢圓幾何性質,光學性質,生活應用
Discover Topics
Rhombus
Orthocenter
Stochastic Process or Random Process
Numbers
Prism