Question

A car wheel has a diameter of 20 inches. About how far does the car wheel travel in one rotation?

Answer 1

Answer: distance travelled in one rotation is the circumference of the tyre.

so

a. 1 rotation=pi×20.8

=22×20.8/7

=65.37 approx

b.5 rotations is 65.37×5

=325.86 aprox

c. 30 rotations is 30×65.37

=1961.14 inches aprox

Explanation: