Question

Ariel bought a new bike. The wheels have a diameter of 20 inches. How far will the bike travel if the wheel rotates one time around?

Answer 1

`distance\ travel\ by\ bike = 62.8\ inches`

Explanation:

Let x be the distance travel by bike to rotate wheel once.

Given:

Diameter of the wheel = 20 inches

The distance travel by bike to rotate wheel one time = circumference of the wheel

`x= circumference\ of\ a\ wheel`

Circumference of the wheel =
`\pi * d`

where d is the diameter of the wheel.

Circumference of the wheel =
`\pi * 20`

Used
`\pi =3.14`

Circumference of the wheel =
`3.14 * 20`

Circumference of the wheel =
`62.8\ inches`

`x=62.18\ inches`

Therefore, the distance travelled by bike to rotate wheel once is 62.8 inches.