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平行四邊形面積
Author:
陳隆期
GeoGebra
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畫出對稱圖形
美國國旗 (Codex, 2026.10.06)
AI 訓練教室
伊朗國旗 (Codex╱2026.10.07)
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Clock
三角形的四心-五線-內外二圓
橢圓
重心 謝易昀
兩圓位置關係
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Statistics
Calculus
General Quadrilateral
Correlation
Cosine