Question

distância entre os pontosA(2,5) eB(5,8)

Answer 1

$A~(2;5)~~e~~B~(5;8)\\\\\\ D_{a,b}= \sqrt{(x_b-x_a)^2+(y_b-y_a)^2} \\\\\\ D_{a,b}= \sqrt{(5-2)^2+(8-5)^2} \to\\\\ D_{a,b}= \sqrt{(3)^2+(3)^2} \to\\\\ D_{a,b}= \sqrt{9+9} \to\\\\ D_{a,b}= \sqrt{18} \to\\\\ D_{a,b}= \sqrt{2.3^2} \to\\\\ \large\boxed{D_{a,b}= 3\sqrt{2} }$