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Proof72 徐晏翎
Author:
郭亮偉
GeoGebra
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四邊形的特性
直角坐標平面上的旋轉變換
【案例】2013年安徽高考15题
柱體建築師
兩位數除以一位數（一）
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題4
Apollonius Problem 6 CLP Inversion 34
與三半圓相切的圓
sun1
点到双曲线的切线方程
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Optimization Problems
Geometry
Numbers
Special Points
Median Line