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proof51 柯承志
Author:
郭亮偉
GeoGebra
New Resources
兩位數加法
直角坐標平面上的旋轉變換
画直线等分三角形的面积
三位數除以一位數（二）
兩組對邊相等的四邊形
Discover Resources
Quartiles and Box Plot (two data sets) 四分位數與框線圖（比較兩組數據）
包絡線2
ie 3
gyzqx 共頂點的圓錐曲線
橢圓1--同心圓法
Discover Topics
Means
Pythagoras or Pythagorean Theorem
Integral Calculus
Scalene Triangles
Vectors 2D (Two-Dimensional)