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四边形面积最大
Author:
李莹
GeoGebra
New Resources
三半圓間的相切圓(Codex╱2026.10.07)
國旗 (作圖步驟直接餵給 Claude)
近似值：有效數字
伊朗國旗 (Codex╱2026.10.07)
Nested spiral octagon
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线段的最值
柱體＿
立方體展開互動版v1.0
抛豆实验
金印的展开图
Discover Topics
Symmetry
Piecewise Functions
Conic Sections
Sequences and Series
Numbers