Răspuns :
Lățimea = 4 cm
Lungimea= 4+1=5 (cm)
Perimetrul=2(L+l)=2*(5+4)=2*9=18 (cm)
Lungimea= 4+1=5 (cm)
Perimetrul=2(L+l)=2*(5+4)=2*9=18 (cm)
l = 4
L = 4 + 1
_____________________
P = ?
P = 2 × ( l + L )
P = 2 × ( 4 + 5 )
P = 2 × 9
P = 18 cm
L = 4 + 1
_____________________
P = ?
P = 2 × ( l + L )
P = 2 × ( 4 + 5 )
P = 2 × 9
P = 18 cm