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jarak : kecepatan x waktu = 48 x 1/3 = 16 km
5. perubahan kedudukan : 20 x 10 = 200 meter
6. 6 : 5 = 1,2
7. karena siku2 jd paket rumus phytagoras : 10 m
8. 3 x 5 = 15