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半角模型
Author:
宋晓燕
GeoGebra
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幾何作圖題：切三圓（題目）
四邊形的特性
Nested spiral octagon
三半圓間的相切圓(Codex╱2026.10.07)
AI 訓練教室
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三角形三邊關係
Rotation
利用Geogebra說明常數函數的圖形性質
二次函数图像描点法
圆心可变的扇形在x轴上滚动
Discover Topics
Equations
Cube
Sequences and Series
Rectangle
Fractions