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s = 154.000 cm
r = ?
kll = s / n
kll = 154.000 / 500
kll = 308
kll = phi . d
308 = 22 / 7 . d
d = (308 . 7) / 22
d = 2156 / 22
d = 98
r = d / 2
r = 98 / 2
r = 49 cm
Sebuah roda berputar sebanyak 500 kali putaran. Ternyata jarak yang ditempuhnya mencapai 154.000 cm. Jari-jari roda itu adalah
Pembahasan
Dik n = 500 kali
s = 154 000 cm = 1540 m
Dit r ?
jawab
KO =
=
= 3,08 meter
KO = 2πr
3,08 = 2π r
r =
= 0,49 meter
= 49 cm
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