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1A ROTATION
Author:
lo yat lung
GeoGebra
New Resources
盈利與虧蝕
龙形曲线-分形龙
龙形曲线-分形龙2
圓的基本性質
平行線的判定
Discover Resources
畢氏定理(五移動)
四邊形四個九點圓共點(九點心)
外積分配律
拋物線相似
立體測量：兩仰角
Discover Topics
Ellipse
Algebra
Integers
Cylinder
Plane Figures or Shapes