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拿破崙三角形
Author:
羅驥韡 (Pegasus Roe)
說明影片：
http://youtu.be/q9nxM2MYOVE
GeoGebra
New Resources
三位數除以一位數（一）
畫出對稱圖形
找出對稱軸
拼砌四邊形
兩組對邊相等和有直角的四邊形
Discover Resources
輪盤輪盤
Sequence指令練習(n的平方根)
圓錐曲線
同心圓
數學電腦繪圖與解題
Discover Topics
Histogram
Subtraction
Prism
Equilateral Triangles
Distributions