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西图对
Author:
phy_小符老师
Topic:
Circle
,
Geometry
GeoGebra
New Resources
Nested spiral octagon
幾何作圖題：切三圓（題目）
Fibonacci Clock
四邊形的特性
三半圓間的相切圓(Codex╱2026.10.07)
Discover Resources
樞紐實驗
測試
All in one (Centres of triangle)
勒洛三角形頂點C軌跡
「相似三角形」任务3的副本
Discover Topics
Expected Value
Perimeter
Multiplication
Normal Distribution
Combinatorics