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Author:
cathycat761031
GeoGebra
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美國國旗 (Codex 版)
Earth with coastline
Fibonacci Clock
幾何作圖題：切三圓（題目）
三半圓間的相切圓(Codex╱2026.10.07)
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高中二年級平面向量
测试
单位圆画三角函数图像
中華民國國旗
Ellipse_Vertical
Discover Topics
Cylinder
Perimeter
Circle
Conditional Probability
Tangent Line or Tangent