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教案一
Author:
螢橋國中
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Fibonacci Clock
長方體平面投影 (Codex版)
Nested spiral octagon
幾何作圖題：切三圓（題目）
伊朗國旗 (Codex╱2026.10.07)
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九點圓的真正面貌
數學繪圖
同心六邊形
太极图
Graph of Cosine
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Square
Pie Chart or Circle Chart
Equilateral Triangles
Symmetry
Sequences and Series