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同心圓
Author:
柳淳珈
GeoGebra
New Resources
三半圓間的相切圓(Codex╱2026.10.07)
Fibonacci Clock
sanjiaohanshu
近似值：有效數字
幾何作圖題：切三圓（題目）
Discover Resources
课前热身
HW question locus 3
sin(x) 的函數圖形的副本
一线三等角模型
橢圓的副本
Discover Topics
Dilation
Geometry
Planes
Linear Equations
Confidence Interval