Amir mengandarai sepeda menempuh jarak 13,2km jika jari-jari roda tersebut 21cm mata roda berputar sebanyak
liliput01
Diket: jarak tempuh roda (s) = 13,2 km = 1.320.000 cm r roda = 21 cm Dit: bnyk putaran roda (n)....? n = s/K , Keliling roda (K) = 2πr K = 2 x /7 x 21 K = 2 x22 x 3 K = 132 maka: n = 1.320.000/132 n = 10000 kali
jarak tempuh roda (s) = 13,2 km = 1.320.000 cm
r roda = 21 cm
Dit: bnyk putaran roda (n)....?
n = s/K
,
Keliling roda (K) = 2πr
K = 2 x /7 x 21
K = 2 x22 x 3
K = 132
maka:
n = 1.320.000/132
n = 10000 kali