Question

calcule a distância entre os pontos A(3,7)e B(1,4)

Answer 1

dp^2=(x2 - x1)^2 + (y2 - y1)^2
dp^2=(1-3)^2+(4-7)^2
dp^2=-2^2 + -3^2
dp^2=4+9
dp^2=13
dp=raiz de 13