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請做出一正三角形
Author:
yen
請做出一正三角形
GeoGebra
New Resources
兩位數除以一位數（一）
兩組對邊相等的四邊形
三位數除以一位數（二）
【案例】2013年安徽高考15题
找出對稱軸
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Quiz on Addition and Subtraction of Directed Numbers (2) 有向數加減測驗(2)
線之極點定理 / pole of a line theorem
Spiral Polyskelion
五角星
圆之吻（Apollonius circles）
Discover Topics
Calculus
Numbers
Curve Sketching
Functions
Pie Chart or Circle Chart