Question

A wheel with radius 1 m is rolled in a straight line through one complete revolution on a flat horizontal surface. How many metres did the centre of the wheel travel horizontally from its starting location?

Answer 1

6.28 m

Explanation:

If a wheel travels with one full revolution, it would have travelled the circumference's distance from it's starting point.

The circumference of a circle is
`2\pi r`

Let's assume
`\pi` is 3.14 and solve for the equation.

`2\cdot3.14\cdot1\\6.28`

Hope this helped!