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空間中兩點間的距離
Author:
JUNWAYLIANG
GeoGebra
New Resources
拼砌四邊形
判斷球體
sanjiaohanshu
找出對稱軸
近似值：有效數字
Discover Resources
tccs work
托勒密定理的應用
半角公式證明
平行四边形
剪切成正三棱柱（制作：李三军，修订：孟宝兴）
Discover Topics
Equilateral Triangles
Linear Programming or Linear Optimization
Dilation
Exponent
Incircle or Inscribed Circle