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鑲嵌
Author:
康靖坤
GeoGebra
New Resources
兩組對邊相等的四邊形
算柱 (兩位數)
球體建築師
錐體建築師
兩位數加法
Discover Resources
九點圓 (9-Point Circle)
三角形內角和
面積與公式
小數（小四下）
行列式計算平行四邊形面積
DSE Circle-ACT01D Distance of Chords and Centre of a Circle
Discover Topics
Similarity Transformation or Similarity
Tangent Line or Tangent
Power Functions
Trigonometry
Natural Numbers