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L roda = 9.859 cm²
jarak tempuh = 1,76 km = 176.000 cm
maka :
L = π x r²
9.859 = 22/7 x r²
r² = 9.859x7 / 22
r = √3.136,95
r = 56,0008
r = 56 cm
jadi banyak roda berputar = 176.000/56 = 3.142,8 = 3.143 kali
9859 = 3,14. r²
r² = 9859 : 3,14
r² = 3139, 81
r = √3139,81
r = 56, 03 cm ---> d = 2.56,03 = 112,06 cm
jadi, putaran = jarak : K lingkaran
= 1,76 km : phi.d
= 1760 : 3,14.112,06
= 1760 : 351,8684
= 5,0018 ~ 5 kali