Question

Dados A (4,-2) e B (12,5), calcule d (A,B)

Answer 1

$d_{AB}=\sqrt{(12-4)^2+(5-(-2))^2} \\ \\ d_{AB}=\sqrt{8^2+7^2} \\ \\ \boxed{d_{AB}=\sqrt{113} \approx 10,63}$

Answer 2

Dados A (4,-2) e B (12,5), calcule d (A,B).

$d_{AB}= \sqrt{x_{B} - x_{A})^2+ (y_{B}-y_{A})^2}$
$d_{AB}= \sqrt{(12-4))^2+ (5-(-2)))^2}$
$d_{AB}= \sqrt{8^2+-7^2} \\ d_{AB}= \sqrt{64+49} \\ d_{AB}= \sqrt{113} \\ d_{AB} \approx 10,63$