Răspuns :

Răspuns:

b) 20 × 4 = 80 m

c) 14 × 4 = 56 cm

a) 12 × 4 = 48 cm

Răspuns:

P=l+l+l+l

20m+20m+20m+20m=70m

P=l+l+l+l

14cm+14cm+14cm+14cm=56cm

P=l+l+l+l

12cm+12cm+12cm+12cm=48cm