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旋轉圓
Author:
cherry910502
GeoGebra
New Resources
拼砌四邊形
三位數除以一位數（二）
第八周作业
兩位數除以一位數（一）
兩組對邊相等的四邊形
Discover Resources
樞紐問題
與三半圓相切的圓
垂心應用
布丰投针实验
包含除法（1 ÷分數）的副本
Discover Topics
Inequalities
Complex Numbers
Straight Lines
Conic Sections
Linear Programming or Linear Optimization