Răspuns :
a) P: 3 cm x 4 = 12 cm
b) P: 7 cm x 4 = 28 cm
c) P: 8 dm x 4 = 32 dm = 320 cm
d) P: 23 hm x 4 = 92 hm = 920000 cm
b) P: 7 cm x 4 = 28 cm
c) P: 8 dm x 4 = 32 dm = 320 cm
d) P: 23 hm x 4 = 92 hm = 920000 cm
a)P=12cm (perimetrul este suma tuturor laturilor)
b)P=28CM
c)8dm=80cm P=320cm
d) cati hm?
b)P=28CM
c)8dm=80cm P=320cm
d) cati hm?