Question

Va rog ajutati-ma !! Exercițiile 1 si 2 doar cele semnate !! Dau coroana!!

Answer 1

1.
a)5400cm²=0,54m²
f)72000cm²=7,2m²
l)0,23km²=230.000m²
2.
b)0,12dm²=0,0012m²
f)0,1m²=1000cm²
g)0,00005hm²=1500cm²

Answer 2

1.

$a) \: 5400 {cm}^{2} \: = \: 5400 {cm}^{2} \: \div \: 100 \: = \: 54 {m}^{2} \\ f) \: 72000 {cm}^{2} \: = \: 72000 {cm}^{2} \: \div \: 100 \: = \: 720 {m}^{2} \\ l) \: 0.23 {km}^{2} \: = \: 0.23 {km}^{2} \: \times 1000 \: = \: 2300 {m}^{2}$
2.

$b) \: 0.12 \: {dm}^{2} \: = \: 0.12 {dm}^{2} \: \times \: 10 \: = \: 12 {cm}^{2} \\ f) \: 0.1 {m}^{2} \: = 0.1 {m}^{2} \: \times 100 \: = \: 10 {cm}^{2} \\ g) \: 0.00005 {hm}^{2} \: = \: 0.00005 {hm}^{2} \: \times 10000 \: = \: 0.5 {cm}^{2}$