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Apollonius Problem poncelet fouche
Author:
tkyggb
GeoGebra
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【案例】2018年全国1卷理科12题
三位數除以一位數（一）
兩位數加法
兩組對邊相等的四邊形
GeoGebra笔记功能体验课件
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三角函數with sine, cosine圖形
波羅摩及多定理應用
Question 8
同心圓
橢圓3--平行四邊形法
Discover Topics
Similarity Transformation or Similarity
Tangent Function
Quadrilaterals
Symmetry
Definite Integral