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圖四
Author:
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
兩組對邊相等的四邊形
兩位數除以一位數（一）
找出對稱軸
Discover Resources
三角形的兩邊中點連線
CalCulus
畢氏定理變裝證明
繪圖
绝对值加减的图像
Discover Topics
Numbers
Circumcircle or Circumscribed Circle
Step Functions
Conditional Probability
Logic