Notez MP=n ; MN=p ; NP=m.
Aplic teorema sinusului:
[tex] \frac{m}{sinM}= \frac{n}{sinN}= \frac{p}{sinP} \\ \frac{n}{sinN}= \frac{p}{sinP}=> p= \frac{n*sinP}{sinN}= \frac{6* \frac{4}{5} }{ \frac{3}{5} }= \frac{24}{5}* \frac{5}{3}=8(cm). [/tex]
MN=8 cm.