Question

calcule a distancia entre 2 pontos

Answer 1

Explicação passo-a-passo:

$\sf A(2,1),~B(4,-1)$

$\sf \overline{AB}=\sqrt{(x_A-x_B)^2+(y_A-y_B)^2}$

$\sf \overline{AB}=\sqrt{(2-4)^2+(1+1)^2}$

$\sf \overline{AB}=\sqrt{(-2)^2+2^2}$

$\sf \overline{AB}=\sqrt{4+4}$

$\sf \overline{AB}=\sqrt{8}$

$\sf \overline{AB}=2\sqrt{2}$