Question

Dadas as coordenadas no plano cartesiano M(2,5) e N(-5,-2), determine a distantancia entre os pontos

Answer 1

$d{mn} = (x {b}^ \: - x {a}^{} ) {}^{2} + (y {b}^{} - \: y {a}^{} )) {}^{2}$
D(m,n)^2=(2- (-5))^2 +(5-(-2))^2
D(m,n)^2=(2+5)^2+(2+5)^2
D(m,n)^2=7^2+7^2
D(m,n)^2=49+49
D(m,n)^2=98
D(m,n)= raiz de 98 ou 9,89