Rezolvati ex 6: (vreau rezolavrea) raspuns la misto=report

Salut!
{a,b,c}dp{2,3,5} => a/2=b/3=c/5= k
C/5 = k
10/5 = k
k=2
=> a=4
b=6
P= a+b+c = 10 + 4 + 6 =20cm (c)