Răspuns :
A____M____B________N__________C
Consideram M mij Am si N mij. BC
AM=MB =AB:2=8
BN=NC
Mn=14 deci BN=14-MB=14-8=6
BC=BN+NC=6+6=12
Consideram M mij Am si N mij. BC
AM=MB =AB:2=8
BN=NC
Mn=14 deci BN=14-MB=14-8=6
BC=BN+NC=6+6=12