Toan de day.

P

peheoluoi

bang 300
de ot
chi can doi 5m = 50 dm
ta lay 50 x 3 x 2=300( dm3)
vay co 300 hinh lap phuong nho co the tick 1dm3:D
 
H

homnaymai

de the ma khong biet lam
doi 5 m = 50dm
ta se co:50x2x3= 300(dm3)
vay se co 300hinh lap phuong nho co the tich bang 1 dm3
 
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