Question

Calcule a distancia entre os pontos A (3,5)e B(-1,2).

Answer 1

Basta aplicar a formula da distancia:

$Distancia=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}\\\\Distancia=\sqrt{(-1-3)^2+(2-5)^2}\\\\Distancia=\sqrt{(-4)^2+(-3)^2}\\\\Distancia=\sqrt{16+9}\\\\Distancia=\sqrt{25}\\\\Distancia = 5$