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幾何作圖題：切三圓（題目）
Fibonacci Clock
Nested spiral octagon
三半圓間的相切圓(Codex╱2026.10.07)
美國國旗 (Claude 版)

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Angle at Centre
兩點長度
圓柱體的體積及總表面面積
A CHAOS GAME!
雙曲線2--焦點法

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Sphere
Logarithm
Pythagoras or Pythagorean Theorem
Distributions
Hyperbola

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