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jrak y ditempuh = 6,6 km = 660.000 cm
d = 84 cm
maka :
K = π x d
= 22/7 x 84
= 264 cm
jadi roda berputar sebanyak = 660.000 / 264 = 2.500 kali (B)
jarak = 660.000 cm
keliling = π . diameter
= 22/7 . 84
= 264 cm
jarak / keliling = 660.000 / 264 = 2.500 kali (B)