Keliling roda pada sepeda 176cm. Tentukanlah: a. hitung panjang jari-jari roda b. jika roda berputar sebanyak 5000 kali berapa jarak tempuh sepeda itu?
ananekusuma2111
A) K = 176 2 x phi x r = 176 2 x 22/7 x r = 176 44/7 x r = 176 r = 176 : 44/7 r = 176 x 7/44 r = 28 cm
b) jarak tempuh = K x banyak putaran = 176 cm x 5.000 = 880.000 cm = (880.000 : 100) m = 8.800 m
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Yoshifumi
A. Keliling = 2 * π * r 176 = 2 * 3,14 * r 176 = 6,28 r r = 28 cm B. 176 * 5000 = 880.000 cm = 8,8 km
K = 176
2 x phi x r = 176
2 x 22/7 x r = 176
44/7 x r = 176
r = 176 : 44/7
r = 176 x 7/44
r = 28 cm
b)
jarak tempuh
= K x banyak putaran
= 176 cm x 5.000
= 880.000 cm
= (880.000 : 100) m
= 8.800 m
176 = 2 * 3,14 * r
176 = 6,28 r
r = 28 cm
B. 176 * 5000 = 880.000 cm = 8,8 km