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三条平行线上的正三角形
Author:
王广喜
GeoGebra
New Resources
美國國旗 (Codex, 2026.10.06)
Fibonacci Clock
三半圓間的相切圓(Codex╱2026.10.07)
伊朗國旗 (Codex╱2026.10.07)
近似值：有效數字
Discover Resources
文氏圖
T7 geobra
gjc097b21 點對三角形的對稱
滾球平台
Copy of 正方体展开图
Discover Topics
Square
Terms
Geometry
Definite Integral
Confidence Interval