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Altitudes making an Orthocenter
作者：
rrobillard
主題：
垂心
GeoGebra
最新資源
函數的單調性
Neuberg's Theorem
montecarlo circles 5
Billard V5.2 and V6
Select an object for a time to start a command. Light
探索資源
perp bisector
Sum of Angles in Quad
Translation Screensaver
Quadrilaterals project
Bài tập 2a trang 119
探索主題
角度
立方（體）
3D 向量（三維）
多項式函數
統計特徵