Răspunsuri

2014-02-27T16:59:13+02:00
AB+AM+BM=48  (1)
AC+AM+CM=28  (2)
AB+AC+BC=72 dar BC=BM+MC (3)
Adun (1) si (2) si tin cont de (3) si obtin
AB+AC+BC+2AM=76
72+2*AM=76
AM=4/2=2