Răspunsuri

  • Utilizator Brainly
2014-10-02T15:49:59+03:00
P=76,8
L=3l

P=2L+2l=76,8 /:2 => L+l=38,4

3l+l=38,4
4l=38,4
l=9,6

L=3l
L=3*9,6
L=28,8
4 4 4
2014-10-02T15:51:25+03:00
Lungimea=3xlatimea
P=2xLungimea+2xlatimea=6xlatimea+2xlatimea=76,8
8xlatimea=76,8
latimea=9,6
Lungimea=3x9,6=28,8
4 4 4