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螢橋國中
GeoGebra
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美國國旗 (Codex 版)
三半圓間的相切圓(Codex╱2026.10.07)
直角坐標平面上的旋轉變換
算柱 (兩位數)
Nested spiral octagon
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動態角=30
二元一次方程式2
製作對稱圖_教師示範
S6G7三视图
圆内弦（迭代）
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Angles
Calculus
Polygons
Expected Value
Trigonometry