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圓與正三角形上動點連線上中點的軌跡
Author:
葉冠和
GeoGebra
New Resources
近似值：有效數字
三半圓間的相切圓(Codex╱2026.10.07)
國旗 (Claude 版)
找出對稱軸
幾何作圖題：切三圓（題目）
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九點圓
六角柱(可側轉、上下轉)
分數
Net of a pyramid
圓周的計算
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Curve Sketching
Continuity
Difference and Slope
Root
Complex Numbers