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GeoGebra
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畫出對稱圖形
中華民國國旗 (Codex╱2026.10.06)
幾何作圖題：切三圓（題目）
美國國旗 (Codex, 2026.10.06)
伊朗國旗 (Codex╱2026.10.07)
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橢圓之極偶 / polarity for ellipse
testssss
劉徽的「割圓術」
水车应用题动画演示
三角形三边关系探究
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Kite
Median Value
Congruence
Equilateral Triangles
Rhombus