The total distance between the two women would simply be the sum of the hypotenuse formed by the triangular path they created. 
 For each women:
 c^2 = a^2 + b^2
 c^2 = 3^2 + 4^2
 c^2 = 9 + 16
 c^2 = 25
 c = 5 m
 Therefore the distance between the two is:
 distance between the two women = 2 * c
 distance between the two women = 10 m