l=latimea
L=lungimea
L=4*l
x=latimea
y=lungimea
y=3/4*L
x=1/2*l
P=perimetrul celui de-al doilea dreptunghi
P=1750=2*x+2*y
1750=2*3/4*L+2*1/2*l
stim ca L=4*l, deci
1750=3/2*4*l + l
1750=6*l + l
1750=7*l
l=1750/7
l=250 m
L=4*250 = 1000 m
x=1/2*l = 1/2*250 = 125 m
y= 3/4*L=3/4*1000 = 750 m