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畢氏定理無字證明9－特例：『一股與斜邊固定比為1:3』
Author:
JerryPan(漢文)
GeoGebra
New Resources
直線的斜率：水平變化 & 鉛垂變化
双心四边形
平行線的斜率
垂直線的斜率
常见四边形是否是双心四边形
Discover Resources
弧度與角度
圖示初小乘數
polygon(first upload)
圖形周界_F
y=sinx描點
Discover Topics
Line Segment
Expected Value
Circumcircle or Circumscribed Circle
Cone
Arithmetic Operations