4 Ha + 15 are=.....M2

1 ha = 1 hm2

4 ha = 40.000 m2

1 are = 1 dam2

15 are = 1.500 m2

40.000 m2 + 1.500 m2
= 41.500 m2

semoga terbantu ^_^

550m2
40ha=400 are=40000m2
15are=15dam=150m2