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proof30黃煒皓
Author:
郭亮偉
GeoGebra
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錐體建築師
球體建築師
判斷球體
兩組對邊相等的四邊形
四邊形的特性
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動態畢氏定理
winter vacation homework 12
pentagon
test08
三角函數圖形（全）的副本
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Conic Sections
Ellipse
Root
Hypergeometric Distribution
Plane Figures or Shapes