Question

qual a distância entre os pontos A(-5,-2) e B(3,1)?​

Answer 1

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

$dAB=\sqrt{(3-(-5))^2+(1-(-2))^2}$

$dAB=\sqrt{(3+5)^2+(1+2)^2}$

$dAB=\sqrt{8^2+3^2}$

$dAB=\sqrt{64+9}$

$dAB=\sqrt{73}$