Question

calcule a distancia entre os pontos P=(1,8) e O=(-3,5)

Answer 1

$P~(1;8)~~e~~O~(-3;5)\\\\\\ D_{p,o}= \sqrt{(x_o-x_p)^2+(y_o-y_p)^2} \\\\\\ D_{p,o}= \sqrt{(-3-1)^2+(5-8)^2} \to \\\\ D_{p,o}= \sqrt{(-4)^2+(-3)^2} \to \\\\ D_{p,o}= \sqrt{16+9} \to \\\\ D_{p,o}= \sqrt{25} \to \\\\ \large\boxed{D_{p,o}=5 }$