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圓周 (圖形I)
Author:
Keith Ko
移動右圖中的紅線到左方虛線，就知道它是相等於左圖的哪條線。
GeoGebra
New Resources
兩位數加法
找出對稱軸
錐體建築師
算柱 (兩位數)
sanjiaohanshu
Discover Resources
waaachen
GGB小組演示作業範例2
Locus: Equidistance From Two Points
Dynamic HSV Color Platte
分數(二)
Discover Topics
Pyramid
Logarithmic Functions
Incircle or Inscribed Circle
Rhombus
Plane Figures or Shapes