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托勒密定理推廣到任意四邊形一
Author:
連琨銘
GeoGebra
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【案例】2018年全国1卷理科12题
兩位數除以一位數（二）
找出對稱軸
兩組對邊相等的四邊形
第八周作业
Discover Resources
An angle problem
對數的遞增或遞減(底數大於1)
平行四邊形
Perpendicular lines
勝者即正義，可愛即正義～(可用Ctrl+滑鼠滾輪放大界面)
Discover Topics
Ellipse
Median Value
Quadratic Functions
Arithmetic Operations
Quadratic Equations