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Heron formula
Author:
ralphchen
GeoGebra
New Resources
多邊形的面積
垂直線的斜率
圓周公式的應用
直線的斜率：水平變化 & 鉛垂變化
直線的斜率
Discover Resources
animation for kastin
vector addition and subtraction
圓外冪問題
推移（x 方向）的副本
函数作图工具的副本
Discover Topics
Matrices
Symmetry
Incircle or Inscribed Circle
Statistics
Subtraction