A bicycle wheel has a radius of 35cm . What distance in kilometer does the wheel cover after 100 revolutions
A: 0.21994 cm
B: 2.994 km
C: 0.22994 km
D: 0.21994 km
We can first convert the radius from cm to km by dividing by 100000 since
100,000 cm = 1km
35 cm = ?
(1 * 35) / 100,000
Radius in km = 0.00035
Circumference=2πr
2×0.00035×22/7
C = 2.2×10^-3
C = 0.0021994 km
1 revolution = 0.0021994km
100 revolutions = ?
(100 * 0.0021994) /1
= 0.21994 km
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