AB=6cm
AC=9cm
BC=10cm
M,N,P-mijl.
Per MNP=?
Per MNP=MN+NP+PM
M,N-mijl=>MN-linie mijl =>MN=BC÷2=>MN=10:2=>MN=5cm
N,P-mijl=>NP-linie mijl=>NP=AB÷2=>NP=6÷2=>NP=3cm
P,M-mijl=>PM-liniemijl=>
PM=AC÷2=>PM=9÷2=>PM=4,5cm
Per MNP=MN+NP+MP=3+5+4,5=>
Per MNP=11,5cm
Sper ca te am ajutat,daca ceva nu ti e clar,ma poti întreba!