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example 1_sun
Author:
ypy
GeoGebra
New Resources
找出對稱軸
四邊形的特性
兩組對邊相等的四邊形
畫出對稱圖形
四邉形 (四年級) 教師版
Discover Resources
方格紙上畫梯形3
excenter of triangle
平方根
勝者即正義，可愛即正義～(可用Ctrl+滑鼠滾輪放大界面)
畢氏定理-切割法
Discover Topics
Triangles
Incircle or Inscribed Circle
Conic Sections
LCM and GCD
Standard Deviation