Unfortunately there's not much we can say other than
[tex]\text{distance} = \sqrt{ (x_1-x_2)^2+(y_1-y_2)^2}\\\\\text{distance} = \sqrt{ (a-c)^2+(b-d)^2}\\\\[/tex]
If we knew the numbers that replace a,b,c,d, then we could compute the actual numeric distance.
