Răspunsuri

2014-06-03T18:57:12+03:00
2(L+l)=106 imparti pe doi si rezulta L+l=53

l=L/4 -2

L+L/4-2=53 amplificam cu 4
4L+L-8=212
5L=212+8
5L=220 impartim la 5
L=44 cm
l=44/4-2 
l=11-2=9

A=Lxl=44x9=396 cm2

1 5 1