Răspuns :
P=224
2L+2l=224
l=8+L/3
2L+2( 8+L/3)=224
2L+16+2L/3=224 /-16
2L+2L/3=208 /x3
6L+2L=624
8L=624 /:8
L=78 M
l=8+78/3
l=8+26
l=34 m
2L+2l=224
l=8+L/3
2L+2( 8+L/3)=224
2L+16+2L/3=224 /-16
2L+2L/3=208 /x3
6L+2L=624
8L=624 /:8
L=78 M
l=8+78/3
l=8+26
l=34 m
l=L/3+8
224=2(L+l)
2(L+L/3+8)=224
L+L/3+8=224:2
(3L+L)/3+8=112
4L/3=112-8
4L/3=104
4l=104x3
L=312:4
L=78 cm
l=L/3+8=78/3+8=26+8=34
l=34 cm
224=2(L+l)
2(L+L/3+8)=224
L+L/3+8=224:2
(3L+L)/3+8=112
4L/3=112-8
4L/3=104
4l=104x3
L=312:4
L=78 cm
l=L/3+8=78/3+8=26+8=34
l=34 cm