Răspuns :
P=perimetru dreptunghi
L=lungimea
l=latimea
P=2(L+l)
l=L:4
L=4l
2(4l+l)=800
2x5l=800
10l=800
l=800:10
l=80 m
L=4x80=320 m
L=lungimea
l=latimea
P=2(L+l)
l=L:4
L=4l
2(4l+l)=800
2x5l=800
10l=800
l=800:10
l=80 m
L=4x80=320 m
P=perimetru dreptunghi
L=lungimea
l=latimea
P=2(L+l)
l=L:4
L=4l
2(4l+l)=800
2x5l=800
10l=800
l=800:10
l=80 m
L=4x80=320 m r:320m
L=lungimea
l=latimea
P=2(L+l)
l=L:4
L=4l
2(4l+l)=800
2x5l=800
10l=800
l=800:10
l=80 m
L=4x80=320 m r:320m