Question

Fie punctele M,N apartine(AB), astfel incat AB=20 CM, AM=4 cm si MN=12 cm.
a) Aflati lungimea segmentului[NB].
b) Aratati ca segmentele[AB] si [MN] au acelasi mijloc.

Answer 1

a) NB=AB-AM-MN=20-4-12=4cm
b)Daca AN=MB⇒$\frac{AB}{2} = \frac{MN}{2}$