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包絡線：拋物線
Author:
羅驥韡 (Pegasus Roe)
Topic:
Parabola
GeoGebra
New Resources
兩位數加法
兩位數除以一位數（一）
錐體建築師
畫出對稱圖形
【案例】2013年安徽高考15题
Discover Resources
弧度與角度
tube15240
Square
Gazing Cow Problem (c)
拼出三角形
Discover Topics
Straight Lines
Difference and Slope
Arithmetic Operations
Cylinder
Parametric Curves