Răspuns :
l = latimea = 45 cm
L = Lungimea
L=3×45=>L=135cm
Perimetrul ABCD = 2×l + 2 × L
P ABCD=2×45+2×135
90+270=360cm
P ABCD = 360 cm
Răspuns:
P=2(L+l)
L=3l=>L=3·45=>L=135cm
l=45cm
P=2(135+45)=>P=360cm
l = latimea = 45 cm
L = Lungimea
L=3×45=>L=135cm
Perimetrul ABCD = 2×l + 2 × L
P ABCD=2×45+2×135
90+270=360cm
P ABCD = 360 cm
Răspuns:
P=2(L+l)
L=3l=>L=3·45=>L=135cm
l=45cm
P=2(135+45)=>P=360cm