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平行线间的等积变形-第一题
Author:
tfflowers
GeoGebra
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四邊形的特性
美國國旗 (Codex 版)
長方體平面投影 (Codex版)
畫出對稱圖形
三半圓間的相切圓(Codex╱2026.10.07)
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总5第五题
Trajectory of system: y'=y^2-y
p10-4
Copy of 劉徽的「割圓術」
任意三角形
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Algebra
Equations
Rational Numbers
Vectors
Similar Triangles