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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
錐體建築師
画直线等分三角形的面积
兩組對邊相等的四邊形
異分母分數減法
Discover Resources
中間人星星
Copy of 根據百分率找數量（一）: 例2
相同圖形的拼砌（三角形）
一次函数图像的平移
利用海龟来趣味演示三角形三边的关系
Discover Topics
Sine
Reflection
Quadratic Equations
Rational Numbers
Prism