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3/4 ha = 0,75 ha
2,5 ha - 0,75 = 1,75 ha
100 are = 1 ha
1,75 + 1 ha = 2,75
18. 3 km = 3000 m
25 menit = 1500 s
m/s
3000/1500
2m/s
2,5 ha - 0,75 ha + 1 ha= 2,75 ha ( a)
18. 3 km = 3000 m
25 menit = 1500 dtk
kecepatan = 300m ÷ 1500 dtk = 2 m/s (a)