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範例二
Author:
王正豪
GeoGebra
New Resources
異分母分數減法
兩組對邊相等的四邊形
找出對稱軸
兩位數除以一位數（二）
四邊形的特性
Discover Resources
n等分點
Perimeter
創作對稱圖形 LEVEL 4
聖誕樹
基础知识
Discover Topics
Sequences and Series
Histogram
Diagrams
General Quadrilateral
Equilateral Triangles