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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
兩組對邊相等和有直角的四邊形
【案例】2018年全国1卷理科12题
拼砌四邊形
畫出對稱圖形
兩位數除以一位數（二）
Discover Resources
Parallelogram 02
周界
盾牌(小動畫)
transformation_rotation
變化圖形製作
Discover Topics
Upper and Lower Sum or Riemann Sum
Median Value
Rational Numbers
Trigonometry
Matrices