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World's Hardest Easy Geometry Problem.
Author:
Terry Chau
Topic:
Geometry
幾何老題１
GeoGebra
New Resources
盈利與虧蝕
撒针估算面积实验
三角函数 的副本
龙形曲线-分形龙
直線的斜率：水平變化 & 鉛垂變化
Discover Resources
扇形滾動基測試題
指數圖形的平移
数轴上的整数加法
旁心
奥倍尔定理
Discover Topics
Orthocenter
Surface
Piecewise Functions
Optimization Problems
Diagrams