Respostas

2014-03-31T04:32:47-03:00
d^2=(bx-ax)^2+(by-ay)^2
d=distancia
A(6,4)
B(-3,-8)

AB = B-A = (-3 -6) ; (-8-4) = (-9,-12)
AB = (-9,-12)
d^2= (-9)^2+(-12^2)\\\\d^2=81+144\\\\d^2=225\\\\d= \sqrt{225}

a distancia entre os dois pontos é 
 \sqrt{255}

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