Răspunsuri

2014-07-09T15:54:22+03:00
Notal lungimea cu 3x
notal latimea cu x+8
suma= 224:2
suma= 112
3x+x+8=112
4x+8=112
4x=112-8
4x=104
x=104:4
x=26
26+8=34(latimea)
26x3=78(lungimea)
33 3 33
  • Utilizator Brainly
2014-07-09T16:16:10+03:00
                                                   P=224                                    Latimea o notam cu l
                                                   P=2(L+l)                                Iar cu L lungimea
                                                   l=8+L/3
                                                   P=2(L+8+L/3=224
                                                   8L/3=224-16
                                                   L=208x3/8
                                                   L=78
                                                   l=8+78/3=8+26=34
                                                   l=34
19 3 19