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三角形的重心軌跡
Author:
lunhsin
GeoGebra
New Resources
兩位數加法
画直线等分三角形的面积
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
【案例】圆柱体内放置一个大球六个小球
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阿波羅尼斯問題：與三圓相切的圓
GeoGebra作圖─ＡＡＳ全等
GeoGebra圖檔上傳
QQ空间
学用数学（分季）
Discover Topics
Rational Numbers
Hypergeometric Distribution
Correlation
Vectors
Integers