An 8×8 square is composed of 62 black squares and 2 white squares. All squares are randomly placed. In how many ways can the white squares be placed so that they have only one point in common?
way (s)

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.