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congruent triangles_provided by Mr Yeung Kar Chun
Author:
kidmancmw
GeoGebra
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幾何作圖題：切三圓（題目）
Nested spiral octagon
世界平面地圖 (Codex╱2026.10.07)
國旗 (Claude 版)
算柱 (兩位數)
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正弦定理
Task 3 Isosceles Triangle
旋轉動畫
Copy of 劉徽的「割圓術」
根據百分率找數量（一）: 例3的副本
Discover Topics
Pythagoras or Pythagorean Theorem
Distributions
Translation
Kite
Fractions