Question 762404
Formula: Square root(x2 - x1)^2 + (y2 - y1)^2
         Square root(19 - 14)^2 + (30 - 18)^2
         Square root (5)^2 + (12)^2
         Square root  25 + 144
             {{{sqrt(169)}}}
                 = 13.
Hope this helps.
:-)