a/___/___/___/___/___/___/___/___/___/___/___/___/
b/_(-1/.........aici e un segment minus 1.....nu am putut realiza desenul corect
c/__/___/___/___/
completam segmentul de la b adaugand 1la suma
atunci suma e 33+1=34....17 segm egale
34:17=2 .....1 segment
a=12x2=24
b=2-1=1
c=2x4=8
verificare 24+1+8=33
