Tolong bantu nomor 18

1/2 ha= 0,25 hm= 0,25 x 10000= 2500 m
25 dam= 25 x 100 = 2500 m
12 are= 12 dam x 100 = 1200 m
220 m= 220 m
2500 + 2500 + 1200 + 220 = 6.420 m2
jawaban = d. 6.420 m2