Question

Calcule a distância entre os pontos (1-1) (4,5)

Answer 1

D=V(xb-xa)^2+(yb-ya)^2

xa=1
ya=-1

xb=4
yb=5

D=V(4-1)^2+(5-(-1))^2
D=V3^2+(5+1)^2
D=V9+6^2
D=V9+36
D=V45
D=3V5