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長方形內兩線段和2
Author:
Erix Chen
GeoGebra
New Resources
世界平面地圖 (Codex╱2026.10.07)
Earth with coastline
sanjiaohanshu
中華民國國旗 (Codex╱2026.10.06)
幾何作圖題：切三圓（題目）
Discover Resources
人造「四腳獸」？
範例：自製工具「格線」
正四面体分形
平行線(方格版)
外心
Discover Topics
Geometric Transformations
Exponent
Confidence Interval
Sine
Statistics