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Panjang lintasan = 88 m (8800 m)
K = πd
= 22/7 × 70
= 220 cm
220 × x = 8800
x = 8800/220
x = 40
Maka roda tsb menggelinding sebanyak 40 kali
panjang lintasan = 88 m
keliling roda = keliling lingkaran = 2 x phi x r = 2 x 22/7 x 35 = 220 cm2
88 m = 8800 cm
8800 : 220 = 40 kali
jadi, berputar sebanyak 40 kali