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拋物線2--焦點法
Author:
16楊杰
GeoGebra
New Resources
找出對稱軸
兩位數除以一位數（二）
四邊形的特性
兩組對邊相等和有直角的四邊形
判斷球體
Discover Resources
Translation 平移變換
電子幾何條
Irregular shape
三角形外心的位置
正态分布
Discover Topics
Quadratic Equations
Median Value
Symmetry
Fractal Geometry
Addition