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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
兩組對邊相等的四邊形
【案例】2013年安徽高考15题
四邊形的特性
找出對稱軸
兩組對邊相等和有直角的四邊形
Discover Resources
圓內弦中點軌跡
球內接正方體
中線定理(阿波羅尼奧斯)定理推廣二：向四邊形推廣
Hoehn's Theorem
碎形三角形
Discover Topics
Quadratic Equations
Pyramid
Linear Programming or Linear Optimization
Fractal Geometry
Multiplication