SOỎ THICHA HỤÙP ỦEỒ VIEỎT VAỨO CHOÓ CHAỎM 4M2 44CM2 = ………..CM2 LA...

21 . Soỏ thicha hụùp ủeồ vieỏt vaứo choó chaỏm 4m

2

44cm

2

= ………..cm

2

laứ

A, 444 B, 4044 C, 44400 D, 40044