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5 squares
Autor:
johnmayhk
GeoGebra
Purple points are mid-points of corresponding line segments. Drag blue points to change the size and orientation of squares. Are two red line segments perpendicular to each other always?
Nuevos recursos
圓的切線方程
科氏力 (Coriolis Force)
双心四边形
平行線的斜率
讀磅
Descubrir recursos
畢氏定理
Operations on Complex Numbers 複數的運算
HKCEE 2009 Q17
同頂角_2
交錯級數(Roger B. Nelsen)
Descubre temas
Intervalo de Confianza
Límites
Estadística
Distribución normal
MCM y MCD