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正多邊形的對角線
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
兩組對邊相等的四邊形
兩位數加法
兩組對邊相等和有直角的四邊形
找出對稱軸
球體建築師
Discover Resources
均分除法（整數÷整數）
Polygon Activity
矩形性质推论
小六 圓周
fraction compare
Discover Topics
Parabola
Random Experiments
Parametric Curves
Quadratic Equations
Functions