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切線段等長
Author:
謝易達
可移動P點，檢查切線段是否等長
GeoGebra
New Resources
画直线等分三角形的面积
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
柱體建築師
畫出對稱圖形
Discover Resources
共頂點、底共線
橢圓拋物面1
S3 Percentages
Question 9
三角形面積
Discover Topics
Plane Figures or Shapes
Rational Numbers
Coordinates
Square
Mathematics