Jawabanmu

2014-03-08T12:27:39+07:00
Dik = jarak tempuh 38465 m
 \pi = 3,14
berputar = 500 kali
r = ?
keliling =  \pi x d
keliling = banyak putaran : jarak
38465 : 500 = 76.93
keliling =  \pi x d
76.93 = 3.14 x d
d = 76.93 : 3.14 = 24.5
r = d : 2
r = 24.5 : 2 = 12.25