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等角作圖
Author:
鍾文欽
Topic:
Constructions
GeoGebra
New Resources
画直线等分三角形的面积
第八周作业
四邊形的特性
算柱 (兩位數)
判斷球體
Discover Resources
時間
錯角練習
圓周
圓周_心算題02
C60足球模型（多边形）
Discover Topics
Subtraction
Arithmetic
Logic
Circumcircle or Circumscribed Circle
Kite