Răspuns :
100-52=48(suma numerelor)
------ =un segment
------
------+2
------+2+2
------+2+2+2
Sunt egale cu 48
48-6x2=36
36:4=9(primul segment)
9+2=11(al doilea segment)
11+2=13(al treilea segment)
13+2=15(al patrulea segment)