Normal
The tires on a bicycle have a diameter of 70 centimeters. About how far does the bicycle travel each time the tires make 10 complete revolutions?
A.
11 meters
B.
22 meters
C.
38 meters
D.
44 meters
The circumference of a circle (which represents one tire) is given by the formula C = πd, where d is the diameter. Therefore, the circumference of one tire is C = π(70cm) = 220cm.
When the tires make 10 complete revolutions, they cover a distance equal to the circumference of the tire multiplied by the number of revolutions. So, the distance traveled is:
distance = 10 x C = 10 x 220cm = 2200cm
Convert this distance to meters:
distance = 22 meters
Therefore, the answer is B. The bicycle travels about 22 meters each time the tires make 10 complete revolutions.