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S8G5 增加的小方格
Author:
安迎春
GeoGebra
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Nested spiral octagon
國旗 (作圖步驟直接餵給 Claude)
三半圓間的相切圓(Codex╱2026.10.07)
長方體平面投影 (Codex版)
美國國旗 (Codex 版)
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An angle problem
交錯弓形的圓周角
同旁內角
Copy of 劉徽的「割圓術」
雙曲線的題目的副本
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Derivative
LCM and GCD
Division
Median Line
Similarity Transformation or Similarity