Question

A bicycle tire has a radius of 11 inches. To the nearest inch, how far does the tire travel when it makes 7 revolutions?

Answer 1

d = 483.56 inches

Explanation:

We have,

Radius of a bicycle tire is 11 inches. It is required to find the distance traveled by the distance covered by the tire when it makes 7 revolutions. One revolution means the circumference of circle. So,

`C=2\pi r\\\\C=2* 3.14* 11\\\\C=69.08\ \text{inches}`

In 7 revolution, it will cover a distance of 7C i.e.

`C=69.08* 7\\\\C=483.56\ \text{inches}`

So, the tire will cover a distance of 483.56 inches in 7 revolutions