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劉德晧proof14
Author:
郭亮偉
GeoGebra
New Resources
球體建築師
兩位數加法
第八周作业
画直线等分三角形的面积
三位數除以一位數（二）
Discover Resources
Proof1 楊玉峰
test08
homework
正二十面體內接黃金矩形
直線的斜率
Discover Topics
Dilation
Solids or 3D Shapes
Rhombus
Similarity Transformation or Similarity
Rotation