Răspuns :
a+b=89
a /-------/
b /------/---/ (in segmentul mic punem 5)
89-5=84 (egalarea segmentelor)
84:2=42 (a)
42+5=47 (b)
a /-------/
b /------/---/ (in segmentul mic punem 5)
89-5=84 (egalarea segmentelor)
84:2=42 (a)
42+5=47 (b)