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直線的投影量
Author:
羅驥韡 (Pegasus Roe)
Topic:
Vectors
GeoGebra
New Resources
錐體建築師
近似值：有效數字
兩位數加法
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
Discover Resources
拋物線(到一點與到一直線等距離的軌跡)
優良作品2(怡婷)
生活中的平面圖形關係─全等
數據分析2
circle: line from centre
Discover Topics
Fractal Geometry
Sine
Circumcircle or Circumscribed Circle
Conic Sections
Vectors 3D (Three-Dimensional)