АЛ
Александр Леонов
AB={(x1-x2)^2+(y1-y2)^2}^1/2
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Zhelayu uspekhov !!!
Vladimir Shchookin.
d=sqrt(((x2-x1)^2)+((y2-y1)^2)))
AB=sqrt(((1-4)^2)+((-4-2)^2))
AB=sqrt(9+36)=45
AB=sqrt(45)