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![](https://rs.olm.vn/images/avt/0.png?1311)
\(4km^2=4000000m^2\)
\(Tk\)\(mk\)\(nha!!!!\)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\(Thank\)\(you\)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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![](https://rs.olm.vn/images/avt/0.png?1311)
1/10 ha = 10m2
1/4 ha = 40 m2
1/100 km2 = 1 ha
2/5 km2 = 40 ha
Chúc bạn thi học kì 1 thật tốt
1/10 ha = 10 m2
1/4 ha = 40 m2
1/100 km2 = 1 ha
2/5 km2 = 40 ha
![](https://rs.olm.vn/images/avt/0.png?1311)
1 km = 1 000 000 m2 5 000 000 m2 = 5 km2
6 m2 4 dm2 = 604 dm2 21 500 cm2 = 215 dm2
3 km2 40 m2 = 3 000 040 m2 3402 cm2 = 34 dm2 2 cm2
12 m2 4 dm2 = 1204 dm2 10 235 dm2 = 102 m2 35 dm2
HT nha + :))) + ~~~
![](https://rs.olm.vn/images/avt/0.png?1311)
\(1m^217cm^2=10017cm^2\)
\(6300dm^2=630000cm^2\)
\(78000dm^2=780m^2\)
\(7km^2=7000000m^2\)
\(20km^2=20000000m^2\)
\(50000000m^2=50km^2\)
![](https://rs.olm.vn/images/avt/0.png?1311)
1)1 dm2 =..0,01....m2
2)1 cm2 =..0,0001....m2
3)1 km2=....1000000...m2
4)1 dm2 =...100...cm2
5)3 km2 =...3000000........m2
6)25 m2 =..2500......dm2
1) 0,01 m2
2) 0,0001 m2
3) 1 000 000 m2
4) 100 cm2
5) 3 000 000 m2
6) 2500 dm2
\(\dfrac{1}{2}km^2=\text{500000}m^2\)
\(\dfrac{1}{2}km^2=\dfrac{1}{2}.1000000m^2=0,5.1000000m^2=500000m^2\)