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旁心三角形的九點圓
Author:
連琨銘
GeoGebra
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【案例】圆柱体内放置一个大球六个小球
異分母分數減法
兩位數加法
直角坐標平面上的旋轉變換
算柱 (兩位數)
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題2
Orthocentre
P4構作對稱圖形
鏡射的副本
第一次尝试
Discover Topics
Conic Sections
Addition
Terms
Cosine
Median Line