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World's Hardest Easy Geometry Problem.
Author:
Terry Chau
Topic:
Geometry
幾何老題１
GeoGebra
New Resources
三位數除以一位數（二）
兩位數除以一位數（一）
算柱 (兩位數)
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
Discover Resources
HKDSE 3D Figures
橢圓的定義
三角柱(可側轉、上下轉)
外心
F3 Ch9.3 羅盤及真方位角
Discover Topics
Hyperbola
Equilateral Triangles
Upper and Lower Sum or Riemann Sum
LCM and GCD
Coordinates